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Calculators

20+ professional-grade calculators for every phase of construction. All free, all instant, no signup.

🏗️

Concrete

Most Used
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Concrete Volume Calculator
Calculate concrete for slabs, columns, beams and footings. Metric & imperial.
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🪣
Concrete Mix Ratio Calculator
Work out cement, sand and aggregate quantities for different mix grades.
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🔩
Rebar / Steel Bar Estimator
Calculate rebar quantity, weight and spacing for reinforced concrete sections.
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🧱

Masonry

🧱
Brick Calculator
Estimate bricks and mortar for any wall — single skin, cavity, or block.
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Mortar Volume Calculator
Calculate mortar quantities for brickwork, blockwork and stone walls.
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◻️
Concrete Block Calculator
How many concrete blocks do you need? Enter wall area and find out instantly.
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⚙️

Structural Steel

⚙️
Steel Weight Calculator
Calculate weight of steel bars, beams, plates and sections by size and length.
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📏
Beam Load Calculator
Estimate loads, reactions and moments for simply-supported and cantilever beams.
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🚜

Earthworks

🚜
Excavation Calculator
Calculate cut and fill volumes for trenches, foundations and bulk earthworks.
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⛰️
Fill Material Calculator
Estimate tonnes of gravel, sand or fill required for any area and depth.
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Asphalt Calculator
Calculate asphalt tonnage for roads, driveways and car parks.
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Finishes & Interiors

🖌️
Paint Coverage Calculator
Work out how many litres of paint you need for rooms, exteriors and ceilings.
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Flooring Calculator
Tiles, hardwood, laminate — calculate area needed plus wastage factor.
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🏠
Roof Area Calculator
Calculate roofing surface area for tiles, shingles and sheet materials.
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