Online Construction Calculators

Fast, accurate, and free tools for contractors, architects, and DIY builders.

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Concrete Calculator

Estimate cubic yards, pre-mixed bags (80lb / 60lb), and sand/gravel ratios.

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Brick & Mortar Calculator

Estimate required bricks, CMU blocks, and mortar volume for walls.

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Mortar Calculator

Determine pre-mixed mortar bags, sand ratios, and water for plastering.

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Excavation Calculator

Calculate dirt volume, swell factors, and dump truck loads needed.

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Paint Calculator

Estimate paint gallons and required coats for interior & exterior walls.

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Rebar & Steel Calculator

Determine total weight, linear feet, and grid spacing for reinforcement steel.

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Tile Calculator

Calculate floor tile counts, required boxes, and thinset mortar with waste.

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Gravel & Crushed Stone

Estimate tons and cubic yards of gravel and road base subgrade.

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Square Footage (sq ft)

Calculate total square footage for rectangular and custom room layouts.