How to use
- Fill in: Concrete volume (m³) and Mix grade. Fields with defaults or marked optional can stay as shown.
- Tap Calculate Bags.
- Read the result - you can print or save it as PDF.
Worked example
With Concrete volume = 1, Mix grade = M20 (1:1.5:3):
CEMENT REQUIRED8.1 bags
- Cement bags (50 kg): 8.1
- Cement weight: 403 kg
- Per m³ of concrete: 8.1 bags
For nominal-mix concrete using the 1.54 dry-volume factor.
