DIY
Concrete Slab Calculator
Calculate concrete for a slab by dimensions. Cubic yards, bags, and rebar spacing. Free calculator.
In this article
Calculate
L × W × thickness (m)। 6×4×0.125 = 3 m³। M20 grade: standard residential। RMC: ₹4,000-6,000/m³। Curing: 7 days water minimum (Indian summer: 3-4 times daily!)।
Indian Homes
RCC slab: universal Indian urban construction method। 5" (125mm) standard residential thickness。
⚡ CalcWolf Insight
Concrete reaches 70% of its strength in 7 days but needs 28 days to fully cure. Do not drive on a new driveway for at least 7 days. Walking is fine after 24-48 hours.
Frequently asked questions
Thickness?▾
Residential: 5" (125mm)। Commercial: 6" (150mm)।
Curing?▾
7 days minimum। Indian summer: water 3-4 times/day。
✓ Math logic verified against primary sources
→ See our verification process
