Free tool
Concrete calculator: cement, sand & aggregate
Estimate the cement, sand and aggregate for a concrete slab, beam or column in Bangalore. Enter the size and mix, get quantities instantly.
How it works
We take the wet concrete volume from your dimensions, apply the standard dry-volume factor of 1.54, then split it by the mix ratio to give cement bags, sand and aggregate. Add 5 to 10 percent for wastage before ordering.
Common concrete mixes
- M20 (1:1.5:3) for slabs and general RCC work
- M15 (1:2:4) for flooring and non-structural work
- M25 (1:1:2) for columns and heavily loaded members
Estimate using standard factors. Actual quantities vary with materials, moisture and workmanship. Confirm with your contractor.