Free Calculators
Free Civil Engineering Calculators
8 professional calculators — completely free, no sign-up required. Results update instantly as you type.
Construction Cost
Estimate total building cost by area, finish type & floors.
Enter area above to calculate
Material Estimator
Calculate cement, steel, sand, bricks & water quantities.
Enter area to see materials
Area Calculator
Calculate area for 5 shapes: rectangle, circle, triangle, trapezoid, L-shape.
Select shape and enter dimensions
Unit Converter
Convert between all common civil engineering units instantly.
Enter value and select conversion
Concrete Mix Design
Calculate cement, sand, aggregate & water for any grade.
Enter volume to calculate mix
Paint Estimator
Calculate paint quantity needed for any room or building.
Enter wall area to calculate
Tile Calculator
Find exact tile count needed including wastage allowance.
Enter room dimensions to calculate
Steel Weight Calculator
Calculate TMT bar weight using IS standard formula D²÷162.
Enter diameter and length to calculate
Need a Precise BOQ for Your Project?
These calculators give estimates. For a detailed, contractor-ready Bill of Quantities with current market rates, contact our engineers.