Free Construction Calculators

Professional-grade calculators for contractors, builders, and DIY homeowners. Get instant material estimates with built-in waste factors.

Concrete Slab Calculator

Calculate the volume of concrete required for a slab, footer, or column, including bag estimates.

Input your measurements

Why Use Our Construction Calculators?

Accurate Estimates

Industry-standard formulas with built-in waste factors ensure you order the right amount of materials.

Instant Results

Real-time calculations update as you type. No waiting, no page reloads required.

Save Money

Avoid over-ordering or running short on materials. Precise estimates help control project costs.