Health calculator
Estimated Energy Requirement Calculator
Estimate adult daily energy requirement from age, sex, height, weight, and physical activity using Dietary Reference Intake EER equations.
FormulaMen: 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)
Formula
Adult estimated energy requirement
EER is a population estimate for energy planning and does not replace medical or dietitian guidance.
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)
A 30-year-old active male at 75 kg and 1.75 m gives about 3,048 kcal/day.
SourcesThis calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.
Sources and assumptions
Source notes
This calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.
- Effective year
- Current rules
- Last verified
- 2026-06-18
EER is a population estimate for energy planning and does not replace medical or dietitian guidance.
Official and reference sources
Assumptions
- The calculator uses adult EER equations for age 19 and above.
- Height is entered in centimeters and converted to meters.
- Activity level chooses the sex-specific physical activity coefficient.
Not included
- Children and adolescents, pregnancy, lactation, clinical nutrition, athletic periodization, weight-loss prescriptions, and measured metabolic testing.
FAQ6 common questions for this calculator.
FAQs
How is EER different from TDEE?+
EER uses Dietary Reference Intake equations and activity coefficients. TDEE calculators often start from BMR or RMR and multiply by an activity factor.
Which activity level should I choose?+
Choose the closest long-term pattern, not one unusually active or inactive day. If unsure, compare low active and active as a range.
How does the Estimated Energy Requirement Calculator calculate the result?+
For the Estimated Energy Requirement Calculator, it uses the Adult estimated energy requirement: 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). A 30-year-old active male at 75 kg and 1.75 m gives about 3,048 kcal/day.
What information do I need to use the Estimated Energy Requirement Calculator?+
For the Estimated Energy Requirement Calculator, enter age, sex, height, weight, and physical activity. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.
How accurate is the Estimated Energy Requirement Calculator?+
Estimated Energy Requirement Calculator is only as accurate as the age, sex, height, weight, and physical activity entered. It applies the Adult estimated energy requirement shown on this page, then rounds for readability. Treat the output as screening guidance rather than a diagnosis.
What should I check before using the Estimated Energy Requirement Calculator result?+
For the Estimated Energy Requirement Calculator, check age, sex, height, weight, and physical activity, unit choices, and whether the calculator's assumptions fit the person being assessed. Use the result as screening or planning context, not as a diagnosis.
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Health guide
How to use the Estimated Energy Requirement Calculator
Estimate adult daily energy requirement from age, sex, height, weight, and physical activity using Dietary Reference Intake EER equations. The page also explains the adult estimated energy requirement and shows a practical example: A 30-year-old active male at 75 kg and 1.75 m gives about 3,048 kcal/day.
- 1
Enter your details
Enter age, sex, height, weight, and physical activity using Dietary Reference Intake EER equations, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the adult estimated energy requirement: 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).
- 3
Compare scenarios
Change one or more inputs to see how they affect the estimated Energy Requirement Calculator result before you use the estimate.