Calculator hub

Construction/Home calculators and tools

Area, paint, tile, concrete, flooring, and home improvement estimators.

Area CalculatorCalculate rectangular area and perimeter for rooms, plots, walls, and surfaces.Paint CalculatorEstimate paint needed from wall area, coverage per liter, and number of coats.Tile CalculatorEstimate how many tiles are needed from floor area, tile size, and waste allowance.Concrete CalculatorEstimate concrete volume for slabs, footings, and rectangular pours.Flooring CalculatorEstimate flooring material and cost from floor area, waste allowance, and price per square meter.Roofing CalculatorEstimate roof surface area from plan area, pitch factor, and waste allowance.Square Footage CalculatorCalculate square footage from length, width, repeated sections, waste allowance, and optional price per square foot.Sand CalculatorEstimate sand volume, tonnes, and material cost from length, width, depth, bulk density, waste, and price per tonne.Asphalt CalculatorEstimate asphalt volume, tonnes, and material cost for a rectangular paved area from depth, density, waste, and price per tonne.Topsoil CalculatorEstimate topsoil volume, tonnes, and cost for lawns, beds, or landscaping areas from area dimensions, depth, density, and waste.Tank Volume CalculatorCalculate cylindrical or rectangular tank capacity and filled volume in liters or gallons from dimensions and fill percentage.Pallet CalculatorEstimate cartons per pallet from pallet deck size, carton size, stack height, carton weight, and pallet weight limit.Container Loading CalculatorEstimate how many equal-size items fit in a 20 ft, 40 ft, high-cube, or custom container using a transparent layer grid method.Wallpaper / Wallboard CalculatorEstimate wall coverage and the number of rolls or boards needed.Fence / Post CalculatorEstimate fence posts from total fence length and spacing.Lumber / Board Feet CalculatorCalculate board feet from lumber thickness, width, length, and quantity.Stair Rise-and-Run CalculatorEstimate riser count and total stair run from rise, riser height, and tread run.Concrete / Paving Cost CalculatorEstimate paving area, concrete volume, and material cost for slabs or paths.Gravel CalculatorEstimate gravel volume, weight, and material cost from area, depth, density, waste, and price per tonne.Mulch CalculatorEstimate mulch volume and bags needed from bed area, depth, bag size, and waste allowance.Drywall CalculatorEstimate drywall sheets needed from wall area, sheet size, and waste allowance.Deck Board CalculatorEstimate deck board rows, boards per row, and total boards including waste.Paver CalculatorEstimate pavers needed from project area, paver size, and waste allowance.Brick CalculatorEstimate bricks needed from wall area, brick size, mortar joint, and waste.

Tool paths

Choose the right construction and home path

Start with the calculator closest to the question, then move sideways to related tools without returning to search.

Area, surfaces, and coverage

Turn dimensions into material quantities before asking for quotes or ordering supplies.

Square footage calculatorFeet-based room, floor, and material area.Flooring calculatorFloor area and material allowance.Paint calculatorWall paint volume from area and coats.Tile calculatorTile count with waste allowance.Drywall calculatorSheet count from wall area and sheet size.Wallpaper calculatorRolls or boards from wall coverage.

Bulk materials and layout

Estimate volume, weight, posts, board feet, and stair geometry for practical project planning.

Concrete calculatorVolume for slabs and rectangular pours.Gravel calculatorVolume, weight, waste, and material cost.Sand calculatorSand volume, tonnes, and material cost.Asphalt calculatorPaving volume, tonnes, and material cost.Topsoil calculatorSoil volume, tonnes, and landscaping allowance.Mulch calculatorMulch volume and bag count.Tank volume calculatorCylinder or rectangular tank capacity.Fence / post calculatorPost count from length and spacing.Board feet calculatorLumber volume from board dimensions.Stair rise-and-run calculatorRisers and total run from stair dimensions.

Logistics and loading

Plan simple pallet and container loads before handing the final plan to a supplier or carrier.

Pallet calculatorCartons per pallet from size, height, and weight limits.Container loading calculator20 ft, 40 ft, high-cube, or custom container grid loading.

Useful starting points

Start with these construction/home tools

Square footage calculatorEstimate floor, wall, and project area before material planning.

Estimate materials before requesting quotes

Construction and home calculators help turn dimensions into quantities for paint, tile, concrete, roofing, decking, pavers, drywall, fencing, lumber, stairs, and other projects. Start with measured dimensions, then decide whether the estimate should include waste, pitch, gaps, overlap, cuts, or spare material.

Material calculators are intentionally conservative planning tools. A supplier or contractor may adjust the final order for site conditions, pack sizes, delivery minimums, local code, breakage, compaction, subfloor preparation, access, or labor. Keep the calculator output as a transparent starting quantity, not the final purchase order.

For best results, split irregular spaces into simpler shapes, calculate each area or volume separately, then add them together. Keep units consistent and record the waste percentage used so quotes can be compared fairly.