ConcreteCalc: Concrete Calc

How much concrete for your slab, foundations or screed? ConcreteCalc works out the exact volume, the number of bags and the mix ratios (cement, sand, gravel, water) — with the right professional ratios, so you pour just enough and waste nothing. Enter your dimensions or the volume directly, choose the work type (slab, foundations, mortar, screed): ConcreteCalc gives you the volume in cubic metres, the number of ready-mix bags and the full mix breakdown, with a budget estimate and the tipping point towards ready-mix delivery. WHAT CONCRETECALC CALCULATES • The concrete volume in cubic metres for your job • The number of ready-mix bags needed • The full mix: cement, sand, gravel, water • A budget estimate and the bag / ready-mix threshold BUILT FOR REAL JOBS • Work types: slab, foundations, mortar, screed • Enter dimensions OR the volume directly • Validated mix ratios (B20 to B35, mortars, screed) • Safety guidance shown on screen SIMPLE, NO STRINGS • 100% free • Works offline, no connection required • No account, no personal data collected • Keep a history of your calculations, stored locally on your phone Also available on the web at construcalc.app. ConcreteCalc is part of the BTP Series, with PaintCalc (paint) and TileCalc (tiles): all your job-site take-offs in one place.