Calculator
Cement Bag Calculator
Enter a number in any column. The other two update to the same cement volume.
Bags ↔ cft ↔ m³
1 × 50 kg bag = 0.0347 m³ = 1.226 cft · density 1440 kg/m³ · 1 m³ = 35.3147 cft
How this is calculated
Formula
- bag_volume_m³ = bag_size_kg ÷ 1440
- bags → m³ = bags × bag_volume; cft = m³ × 35.3147
- cft → m³ = cft ÷ 35.3147; bags = m³ ÷ bag_volume
- m³ → bags = m³ ÷ bag_volume; cft = m³ × 35.3147
Assumptions
- Cement bulk density is taken as 1440 kg/m³.
- 1 m³ = 35.3147 cft.
- Volume of one bag = bag_weight_kg ÷ 1440.
- Enter any one of bags / cft / m³ — the converter fills the other two.
- This converts cement volume only — not mixed concrete volume.