Calculator directory

Construction & DIY calculator directory

Find free calculators for materials, measurements, quantities, areas, volumes, waste, and project costs.

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Categories

Browse by project

Choose the project area first, then use related calculators in measurement order.

Pitch, rafters, roof area, and roofing material estimates.

Explore calculators Decking

Plan boards, joists, footings, and outdoor structures.

Explore calculators Concrete

Volume estimates for slabs, footings, and columns.

Explore calculators Flooring

Floor area, materials, tile, and waste allowances.

Explore calculators Painting

Paint quantities for rooms, walls, and ceilings.

Explore calculators Drywall

Sheets, screws, compound, and wall coverage.

Explore calculators Tile

Tile counts, grout spacing, boxes, and waste.

Explore calculators Fencing

Posts, panels, rails, and fence material planning.

Explore calculators Landscaping

Gravel, mulch, pavers, and outdoor materials.

Explore calculators Measurement

Area, length, volume, and unit conversions.

Explore calculators Cost Estimation

Turn material quantities into practical budgets.

Explore calculators

Full directory

All construction calculators

Every listed tool is available now and includes formulas, validation, units, and planning limitations.

Roof Pitch CalculatorConvert rise and run into pitch ratio, slope percentage, angle, and rafter length.Ready Deck Material CalculatorEstimate deck boards, total board length, joists, waste, and material cost.Ready Concrete CalculatorCalculate concrete volume for slabs, footings, and round columns.Ready Paint CalculatorEstimate paint for room walls after doors, windows, coats, and coverage.Ready Tile CalculatorEstimate tiles and boxes with grout spacing and a practical waste allowance.Ready Drywall CalculatorEstimate sheets, screws, joint compound, wall area, and ceiling area.Ready Roof Area CalculatorEstimate sloped roof surface area from plan dimensions and pitch.Ready Roofing Material CalculatorPlan shingles, underlayment, ridge caps, and roofing waste.Ready Rafter CalculatorEstimate common rafter length from span, run, and pitch.Ready Joist CalculatorEstimate joist quantity and spacing for a deck frame.Ready Board CalculatorEstimate linear boards for a measured surface.Ready Flooring CalculatorEstimate flooring packs with offcuts and waste.Ready Fence CalculatorEstimate fence posts, panels, rails, and concrete.Ready Gravel CalculatorEstimate gravel volume and weight for paths and beds.Ready Paver CalculatorEstimate pavers, base material, and sand.Ready Mulch CalculatorEstimate mulch volume for landscape beds.Ready Square Footage CalculatorCalculate floor, wall, or project area.Ready Room Area CalculatorCalculate room floor and wall areas.Ready Stair CalculatorPlan stair rise, run, tread count, and stringer length.Ready Brick CalculatorEstimate brick quantities and mortar allowance.Ready Block CalculatorEstimate concrete block quantities for walls.Ready Construction Cost CalculatorBuild a simple project cost estimate from quantities and rates.Ready Material Cost CalculatorEstimate material totals, tax, delivery, and waste.Ready