What is Cement?
The Cement Calculator estimates the number of cement bags needed for your construction project. It calculates based on the volume of work and the cement-sand-aggregate mix ratio.
Common mix ratios in India: - M20 (general): 1:1.5:3 - M15 (light): 1:2:4 - M25 (structural): 1:1:2
Formula
Wet Volume = L × W × Thickness Dry Volume = Wet Volume × 1.54 (54% increase for compaction) For M15 mix (1:2:4): Cement Volume = Dry Volume / (1+2+4) Cement Bags = Cement Volume / 0.035 m³ (volume of 1 bag) Sand = Cement Volume × 2 Aggregate = Cement Volume × 4
How to use this Cement Calculator?
1. Enter length and width of the slab/area. 2. Enter thickness of concrete. 3. The calculator assumes M15 (1:2:4) mix ratio. 4. See cement bags, sand, and aggregate needed.