Monthly value = tasks per week x minutes saved x 52 / 12 / 60 x hourly value x users - monthly AI cost
ROI = (hours saved x hourly value x adoption rate + extra revenue - monthly cost) / monthly cost x 100
Break-even units = fixed costs / (price per unit - variable cost per unit)
Runway months = cash balance / monthly net burn
Churn rate = lost customers / starting customers x 100
Conversion rate = conversions / visitors x 100
CPM = spend / impressions x 1000; CPC = spend / clicks; CTR = clicks / impressions
CLV = average order value x purchases/year x lifespan x gross margin
Annual depreciation = (cost - salvage value) / useful life
Sale price = original price x (1 - discount / 100)
EBITDA = revenue - COGS - operating expenses + D&A; margin = EBITDA / revenue
Deadline = received time + SLA hours
Day rate = target income x (1 + overhead %) / billable days
Gross profit = revenue - COGS; gross margin = gross profit / revenue
Total hiring cost = fees + ads + interview time + onboarding + ramp cost
Inventory turnover = COGS / average inventory
Total = (subtotal - discount) x (1 + tax rate)
Selling price = cost x (1 + markup / 100)
Cost = attendees x hours x hourly cost
Pakistan Sales Tax Return Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Unit price = total price / quantity
Margin = (price - cost) / price x 100; Markup = (price - cost) / cost x 100
Quick ratio = (cash + receivables + marketable securities) / current liabilities
Reorder point = demand per day x lead time + safety stock
ROI = (gain - cost) / cost x 100
Commission = sales x rate; payout = commission + bonus
Tax = price x tax rate / 100; total = price + tax
Singapore Corporate Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Hours = end time - start time - break
UAE Import Duty and Landed Cost Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
UAE VAT Return Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Working capital = current assets - current liabilities
C1V1 = C2V2
PV = nRT; P = nRT / V
Molarity = moles of solute / liters of solution
pH = -log10([H+])
Area = length x width
Asphalt tonnes = length x width x depth(m) x density kg/m3 x (1 + waste %) / 1000
Bricks = wall area / brick face area x waste factor
Cost = length x width x depth x unit price
Volume = length x width x depth
Items loaded = max(floor(L/itemL) x floor(W/itemW), floor(L/itemW) x floor(W/itemL)) x floor(H/itemH)
Rows = deck width / board spacing; total boards = rows x boards per row x waste factor
Sheets needed = ceil(wall area x (1 + waste %) / sheet area)
Posts = floor(length / spacing) + 1
Material area = floor area x (1 + waste %); cost = material area x unit price
Volume = length x width x depth; tonnes = volume x density / 1000
Board feet = thickness(in) x width(in) x length(ft) x pieces / 12
Cubic feet = area in square feet x depth in inches / 12
Paint needed = wall area x coats / coverage per liter
Cartons per pallet = min(cartons per layer x layers, max pallet weight / carton weight)
Pavers = area / paver area x waste factor
Roof area = plan area x pitch factor x (1 + waste %)
Volume = length x width x depth; tonnes = volume x density / 1000
Risers = ceil(total rise / preferred riser height); run = (risers - 1) x tread depth
Cylinder volume = pi x (diameter / 2)^2 x length; rectangular volume = length x width x height
Tiles needed = floor area x (1 + waste %) / tile area
Topsoil tonnes = length x width x depth(m) x density kg/m3 x (1 + waste %) / 1000
Items needed = wall area / coverage per item
Target date = start date + number of calendar days
Age = comparison date - date of birth, adjusted by calendar months and days
Next anniversary = next yearly occurrence of the original month and day on or after the as-of date
Current age = completed calendar years; next birthday = next yearly birth month/day on or after as-of date
Count Monday-Friday dates between start and end
Days in month = last day of selected month; calendar rows = ceil((first weekday offset + days) / 7)
Age = full calendar years + full calendar months + remaining days between birth date and as-of date
Days remaining = target date - today
Difference = end date - start date
Elapsed days = absolute(end date - start date); inclusive days = elapsed days + 1
Weekday is read from the selected Gregorian calendar date
Target date = today + number of days
Whole hours = floor(decimal hours); minutes = fractional hours x 60
Leap year = divisible by 4, except years divisible by 100 must also be divisible by 400
Decimal hours = minutes / 60
Completed months = full calendar years x 12 + full remaining months; extra days are counted after the last full month
Duration = end time - start time
Selected local time is mapped to an instant, then formatted in the target timezone
UTC milliseconds = Unix seconds x 1000, or milliseconds as entered
Local time = UTC instant formatted in selected timezone
Week is calculated from the nearest Thursday in the ISO week year
Australia HELP Repayment Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Fraction = decimal x denominator / denominator, then simplify
GPA = sum(credits x grade points) / total credits
Needed final score = (target - current x (1 - final weight)) / final weight
Needed = (target - current x completed weight) / remaining weight
New Zealand Student Loan Repayment Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Minutes = word count / words per minute
number = coefficient x 10^exponent
Daily study = remaining hours / available days
z = (score - mean) / standard deviation
Savings = current annual cost x savings rate x years - upgrade cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Charging cost = battery kWh x charge added % x electricity rate / charging efficiency
Charging cost = battery kWh x charge added % x electricity rate / charging efficiency
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Total savings = (gas cost - EV charging cost + maintenance savings) x years + incentives - EV price premium
Savings = current annual cost x savings rate x years - upgrade cost
Savings = current annual cost x savings rate x years - upgrade cost
Savings = current annual cost x savings rate x years - upgrade cost
CO2e = activity amount x emission factor
Savings = current annual cost x savings rate x years - upgrade cost
CO2e = activity amount x emission factor
Payback = net project cost / annual savings; ROI = net savings / net project cost x 100
Payback = net project cost / annual savings; ROI = net savings / net project cost x 100
Payback = net project cost / annual savings; ROI = net savings / net project cost x 100
Payback = net project cost / annual savings; ROI = net savings / net project cost x 100
ROI = (annual savings + annual revenue) x years + credits + resale value - upfront cost, divided by upfront cost
Savings = current annual cost x savings rate x years - upgrade cost
Liters = roof area sq m x rainfall mm x efficiency
Energy = system kW x sun hours x performance ratio x days
Runtime hours = battery mAh x efficiency / load mA
Monthly km = one-way distance x 2 x commute days; fuel = km x efficiency / 100
kWh = watts / 1000 x hours per day x days; cost = kWh x rate
Heat index estimates apparent temperature from Fahrenheit temperature and relative humidity
Cubic feet = length x width x average depth; gallons = cubic feet x 7.48052
Total = usage x rate + fixed charge + tax or fees
Wind chill uses Fahrenheit temperature and wind speed in mph
Employee contribution = min(salary x contribution %, 2026 elective limit); employer match = eligible contribution x match %
Payment = balance x monthly rate / (1 - (1 + monthly rate)^-months)
APY = (1 + nominal rate / compounds per year)^(compounds per year) - 1
Australia Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
GST = net price x rate; gross price = net price + GST; net price = gross price / (1 + rate)
Australia Income Tax and Medicare Levy Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Payment = P x r x (1 + r)^n / ((1 + r)^n - 1)
Australia PAYG Withholding Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Australia Stamp Duty Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
SG required = min(ordinary time earnings, maximum contribution base) x SG rate - contributions already paid
Amount financed = price - down payment - trade-in + tax + fees; payment uses the loan amortization formula
Estimated value = troy ounces x metal price per troy ounce x purity factor x market adjustment x currency rate
CAGR = (ending value / beginning value)^(1 / years) - 1
Canada Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Total tax = net price x combined rate; gross price = net price + total tax; net price = gross price / (1 + combined rate)
Canada Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Canada Land Transfer Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Payment = P x r x (1 + r)^n / ((1 + r)^n - 1)
Payroll deductions = income-tax withholding + CPP + CPP2 + EI
RRSP room = min(previous earned income x 18%, annual dollar limit) + unused room - PA - PSPA + PAR
TFSA room = prior room + current-year dollar limit + prior-year withdrawals - current-year contributions
Tax due = max(sale proceeds - cost basis, 0) x tax rate
Maturity value = deposit x (1 + annual rate / compounds per year)^(compounds per year x years)
Education NPV = present value of incremental earnings - present value of net college cost
A = P x (1 + r / n)^(n x t)
Each month: interest = balance x APR / 12; principal paid = payment - interest
Converted amount = amount x exchange rate
Enterprise value = sum(FCF_t / (1 + r)^t) + terminal value / (1 + r)^n
Months are estimated from balance, APR, and monthly payment
DTI = monthly debt payments / gross monthly income
Dividend yield = annual dividend per share / share price
Future value = contribution x (((1 + r)^n - 1) / r)
EAR = (1 + nominal rate / compounds)^compounds - 1
Target = monthly expenses x months; remaining = target - current savings
Monthly payment = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
Monthly EPF addition = employee EPF + employer EPF; employer EPF = employer contribution - EPS diversion
FICA = Social Security tax + Medicare tax + Additional Medicare tax
Fuel needed = distance x fuel efficiency / 100; trip cost = fuel needed x fuel price
FV = PV x (1 + r)^n + PMT x (((1 + r)^n - 1) / r)
Germany Capital Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Germany Church Tax and Solidarity Surcharge Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Germany Net Salary and Social Insurance Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Germany Real Estate Transfer Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
VAT = net price x rate; gross price = net price + VAT; net price = gross price / (1 + rate)
Germany Wage Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
HRA exemption = least of actual HRA received, rent paid - 10% of salary, and 40% or 50% of salary
India Advance Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
India Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
GST amount = base amount x GST rate / 100; inclusive base = GST-inclusive amount / (1 + rate / 100); intra-state split = CGST + SGST; inter-state split = IGST; international/export treatment must be verified
EMI = P x r x (1 + r)^n / ((1 + r)^n - 1)
India House Property Income Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Taxable income = gross income - standard deduction - eligible old-regime deductions; tax = slab tax - rebate/relief + 4% cess
India Salary TDS Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
India Stamp Duty and Registration Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Future cost = current cost x (1 + inflation rate)^years
0 = CF0 + CF1/(1+r)^1 + CF2/(1+r)^2 + ... + CFn/(1+r)^n
Remaining allowance = annual ISA allowance - current subscriptions - allowed planned contribution
Principal is solved from payment, monthly rate, and number of payments
Payment = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
Calculate each fixed payment, then compare payment and total interest
Housing budget = min(income x front-end DTI, income x back-end DTI - debts)
Interest = balance x monthly rate; principal paid = payment - interest
New balance = previous balance + monthly interest - payment
Break-even months = points cost / monthly payment savings
Break-even months = closing costs / monthly savings
Net worth = total assets - total liabilities
New Zealand Bright-Line Property Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
GST = net price x rate; gross price = net price + GST; at 15%, GST included = gross price x 3 / 23
New Zealand Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Yearly contribution = employee contribution + employer contribution after ESCT + eligible government contribution
Net pay = gross pay - income tax - ACC - employee KiwiSaver - student-loan repayment
New Zealand Provisional Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Projected corpus grows monthly contributions, then splits final corpus into lump sum and annuity portions
NPV = sum(cash flow in year t / (1 + discount rate)^t) - initial investment
Payment = P x r x (1 + r)^n / ((1 + r)^n - 1)
Pakistan ATL Filer vs Non-Filer Tax Impact Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Pakistan Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Pakistan Property Transfer Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Pakistan Salary Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Sales tax = net price x rate; gross price = net price + sales tax; net price = gross price / (1 + rate)
Pakistan Withholding Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Payback period = initial investment / annual cash flow
Qualifying earnings = capped salary - lower qualifying earnings limit; contributions = qualifying earnings x contribution rates
Balance is projected yearly: balance = (opening balance + annual deposit) x (1 + annual rate)
PV = FV / (1 + r)^n
Buy cost = mortgage payment + taxes/insurance/maintenance - rent
FV = current x (1 + r)^n + contribution x (((1 + r)^n - 1) / r)
Return on assets = net income / average total assets
Return on equity = net income / average shareholders' equity
Return on sales = operating profit / revenue
Allowed contribution = annual limit reduced across the MAGI phase-out range; projected balance grows yearly
Annual salary = hourly rate x hours per week x weeks per year
Monthly saving = remaining goal / months
Interest = Principal x Rate x Time / 100
Eligible CPF wages = min(monthly ordinary wages, OW ceiling) x 12 + capped additional wages; employee CPF = eligible wages x employee rate; employer CPF = eligible wages x employer rate
GST = net price x rate; gross price = net price + GST; net price = gross price / (1 + rate)
Singapore Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Singapore Property Stamp Duty Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Singapore Property Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Singapore Self-Employed MediSave Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
FV = P x (((1 + i)^n - 1) / i) x (1 + i)
Tax amount = base x rate / 100; pre-tax amount = inclusive amount / (1 + rate / 100)
FV = PV x (1 + r)^n + PMT x (((1 + r)^n - 1) / r)
Tip = bill x tip rate; per person = (bill + tip) / people
UAE Corporate Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
UAE End of Service Gratuity Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
UAE Excise Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
VAT = net price x rate; gross price = net price + VAT; net price = gross price / (1 + rate)
UK Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
UK Dividend Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Take-home pay = gross employment income - pre-tax deductions - income tax - employee National Insurance
Payment = P x r x (1 + r)^n / ((1 + r)^n - 1)
UK Savings Interest Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
UK Self Assessment Payments on Account Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
SDLT = sum of each property price slice x marginal SDLT rate
UK Student Loan Repayment Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
VAT = net price x rate; gross price = net price + VAT; net price = gross price / (1 + rate)
US Capital Gains Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
US Child Tax Credit and EITC Estimator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
US Estimated Quarterly Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Taxable income = gross income - deduction; federal tax = bracket tax - tax credits
Payment = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
US Paycheck Withholding Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
US Self-Employment Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
US State Income Tax Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
WACC = E/(D + E) x Re + D/(D + E) x Rd x (1 - tax rate)
0 = sum(CF_i / (1 + r)^(days_i / 365))
Oil = butter x oil ratio; butter = oil / oil ratio
Total caffeine = drinks x caffeine per drink
Total nutrition = entree shell + rice + beans + protein + vegetables + salsa + toppings + side
Calories = protein g x 4 + carbs g x 4 + fat g x 9 + alcohol g x 7
Total nutrition = main item + side + drink
Area = pi x (diameter / 2)^2; unit price = price / area
Converted amount = amount x from-unit mL / to-unit mL x target servings / original servings
Total cost = sum ingredient costs; cost per serving = total / servings
Per serving = recipe total / servings
Estimated calories = Grande drink preset x size factor + extra syrup + whipped cream + custom add-ons
Total nutrition = (sandwich + cheese + sauce + avocado) x size factor
Instant yeast = active dry x 0.75; fresh yeast = active dry x 3
Planet age = Earth age / planet orbital period in Earth years
P(match) = 1 - product((365 - i) / 365)
Probability = nCk / 2^n
Probability = favorable outcomes / total outcomes
First year = 15 human years, second year = 9 more, later years vary by size
Men: 86.010 x log10(waist - neck) - 70.041 x log10(height) + 36.76; Women: 163.205 x log10(waist + hip - neck) - 97.684 x log10(height) - 78.387
Category is based on systolic and diastolic thresholds
BMI = weight in kg / (height in meters)^2
BMI prime = BMI / 25
Men: 10w + 6.25h - 5a + 5; Women: 10w + 6.25h - 5a - 161
Men: 86.010 x log10(waist - neck) - 70.041 x log10(height) + 36.76; Women: 163.205 x log10(waist + hip - neck) - 97.684 x log10(height) - 78.387
BSA = sqrt(height(cm) x weight(kg) / 3600)
BMR = 10w + 6.25h - 5a + s; TDEE = BMR x activity factor
Daily deficit = maintenance + exercise - intake; weekly kg change = daily deficit x 7 / 7700
Daily carbs = calories x carbohydrate percentage / 100 / 4; carbs per meal = daily carbs / meals
Men: 662 - 9.53 x age + PA x (15.91 x weight kg + 539.6 x height m); Women: 354 - 6.91 x age + PA x (9.36 x weight kg + 726 x height m)
Lower weight = 18.5 x height(m)^2; upper weight = 24.9 x height(m)^2
Men: 50 + 2.3 x inches over 5 ft; Women: 45.5 + 2.3 x inches over 5 ft
Fat grams = (calories - net carbs x 4 - protein grams x 4) / 9
Male LBM = 0.407W + 0.267H - 19.2; Female LBM = 0.252W + 0.473H - 48.3
Protein grams = protein calories / 4; carbs grams = carb calories / 4; fat grams = remaining calories / 9
BMR = 10w + 6.25h - 5a + s; maintenance calories = BMR x activity factor
1RM = weight x (1 + reps / 30)
Ovulation date = next period date - 14 days
Estimated due date = LMP + 280 days
Daily protein = body weight kg x grams per kg; protein per meal = daily protein / meals
Protein per meal = body weight kg x grams per kg / meals
RMR = 10w + 6.25h - 5a + s
Pace = total time / distance; speed = distance / time
Bedtime = wake time - sleep cycles x 90 minutes
Max HR = 220 - age; zones are percentages of max HR
BMR = 10w + 6.25h - 5a + s; TDEE = BMR x activity factor
TEF = protein calories x protein factor + carb calories x carb factor + fat calories x fat factor + alcohol calories x alcohol factor
VO2 max = 15.3 x max heart rate / resting heart rate
WHR = waist circumference / hip circumference
Daily water = body weight x 35 ml, adjusted for activity
a_n = a_1 + (n - 1)d; sum = n(a_1 + a_n)/2
Average = sum of values / number of values
Area = pi r^2; circumference = 2 pi r; diameter = 2r
Volume = pi r^2 h; surface area = 2 pi r(r + h)
Percent = decimal x 100
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Power = base^exponent
n! = n x (n - 1) x ... x 1
a/b + c/d = (ad + bc) / bd
Percent = numerator / denominator x 100
LCM(a,b) = abs(a x b) / GCD(a,b)
a_n = a_1 r^(n - 1); sum = a_1(1 - r^n)/(1 - r)
log_b(x) = ln(x) / ln(b)
Midpoint = ((x1 + x2) / 2, (y1 + y2) / 2)
Decimal values are represented in base 2, base 8, and base 16
Fraction = percent / 100, then reduce to lowest terms
Percent of number = percent / 100 x number; X as percent of Y = X / Y x 100; change % = (new - old) / old x 100
Change % = (new value - old value) / old value x 100
nPr = n! / (n - r)!; nCr = n! / (r! x (n - r)!)
A prime number has exactly two positive divisors: 1 and itself
c = sqrt(a^2 + b^2)
x = (-b +/- sqrt(b^2 - 4ac)) / 2a
Simplified ratio = A / gcd(A, B) : B / gcd(A, B)
Volume = length x width x height; surface area = 2(lw + lh + wh)
Use descending symbols M, CM, D, CD, C, XC, L, XL, X, IX, V, IV, I
Supports sin, cos, tan, inverse trig, ln, log10, sqrt, powers, factorials, pi, e, and parentheses
slope = (y2 - y1) / (x2 - x1)
Volume = 4/3 pi r^3; surface area = 4 pi r^2
Square root of x is the number y where y x y = x
Mean = sum / count; SD = sqrt(mean squared deviation)
Area = sqrt(s x (s - a) x (s - b) x (s - c)), where s = perimeter / 2
Required bandwidth = users x Mbps per user x (1 + overhead)
Monthly transfer = users x sessions x data per session
Time seconds = file size in megabits / speed Mbps
Total wait = latency per round trip x number of round trips
Addresses = 2^(32 - prefix); network = IP AND subnet mask; broadcast = network + addresses - 1
Acceleration = (final velocity - initial velocity) / time
Density = mass / volume
Force = mass x acceleration
KE = 0.5 x mass x velocity^2
Parsecs = light-years / 3.26156; light-years = parsecs x 3.26156
Momentum = mass x velocity
Resistance = voltage / current; power = voltage x current
Pressure = force / area
Range = v^2 sin(2theta) / g; max height = v^2 sin^2(theta) / 2g
Speed = distance / time
Torque = force x lever arm x sin(angle)
Wave speed = frequency x wavelength
Work = force x distance x cos(angle); power = work / time
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
ROI = (impressions x conversion rate x order value x margin + sponsorship revenue - costs) / costs x 100
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Affiliate revenue = clicks x conversion rate % x order value x commission %
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Net earnings = (views / 1000 x reels RPM + gifts + bonuses) x (1 - fees %)
Estimated earnings = followers / 1000 x rate per 1,000 followers x niche factor x engagement factor x posts + affiliate or bonus revenue - fees
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views / 1000 x base RPM x country multiplier x niche multiplier
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Net creator revenue = impressions x eligible rate / 1000 x RPM + subscription revenue + bonus revenue - fees - platform cost
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated rewards = qualified views x eligible rate / 1000 x base RPM x country factor x niche factor
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated channel value = max(monthly revenue - monthly costs, 0) x revenue multiple
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated creator revenue = monthly views / 1000 x gross RPM x country factor x niche factor x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Estimated payout = views / 1000 x gross Shorts RPM x country factor x niche factor x (1 - music deduction %) x creator share %
Calories = MET x 3.5 x weight kg / 200 x minutes
Calories = MET x 3.5 x body weight kg / 200 x minutes
Predicted time = current time x (target distance / current distance)^1.06
Distance km = steps x stride length m / 1000; calories = distance km x body weight kg x 0.7
Distance = steps x stride length
Calories = MET x 3.5 x body weight kg / 200 x minutes
P(X = k) = nCk p^k (1 - p)^(n-k)
chi-square = sum((observed - expected)^2 / expected)
Margin = z x standard deviation / sqrt(sample size)
r = sum((x - mean x)(y - mean y)) / sqrt(sum(x - mean x)^2 sum(y - mean y)^2)
P(X = k) = e^-lambda x lambda^k / k!
P(A and B) = P(A) x P(B); P(A or B) = P(A) + P(B) - P(A and B)
n = z^2 x p x (1 - p) / e^2
SE = standard deviation / sqrt(sample size)
Weighted average = sum(value x weight) / sum(weights)
z = (value - mean) / standard deviation
Driving time = distance / average speed; total travel time = driving time + stop time
MPG US = 235.214583 / L/100 km; km/L = 100 / L/100 km
L/100 km = fuel liters / distance km x 100
Range = usable fuel / efficiency x 100
Total = lodging + food + transport + activities + contingency
UK size is about US + 4; EU size is about US + 30
Scaled amount = original amount x target servings / original servings
EU is estimated from selected US size; UK is about US - 1 for men and US - 2 for women