Concrete Mix Calculator
Upgrade version with additional result calculation in buckets, buckets ratio, Export A4 PNG, Export JSON, and Import JSON. Default: 1 buckets = 20 L
Typical bulk density
Good for buckets conversion
Good for buckets conversion
Used for bag result
1 buckets = 20 L
| Material | Amount | Amount |
|---|---|---|
| Cement | 225.0 kg | 4.5 bags) or 7.8 buckets |
| Sand | 946.0 kg | 30.5 buckets |
| Gravel | 1008.0 kg | 34.8 buckets |
| Water | 170.0 L | 8.5 buckets |
| Water + Admix | 160.0 L | 8.0 buckets |
buckets Ratio Result — Cement : Sand : Gravel , 1 Bag = 2.5 buckets (measured normally, not overfilled)
Exact bucket Ratio
7.8 : 30.5 : 34.8
Normalized Ratio
1 : 3.9 : 4.5
Cement bucket
7.8 buckets
Sand bucket / Gravel bucket
30.5 buckets / 34.8 buckets
Cement is shown as bags or buckets. Sand / Gravel / Cement buckets result is converted from kg → m³ → L → buckets.
| Material | Mass | Density (kg/m³) | Volume (m³) | buckets |
|---|---|---|---|---|
| Cement | 225.0 kg | 1440 | 0.1563 m³ | 7.8 buckets |
| Sand | 946.0 kg | 1550 | 0.6103 m³ | 30.5 buckets |
| Gravel | 1008.0 kg | 1450 | 0.6952 m³ | 34.8 buckets |
Formula for solid materials: buckets = ((kg ÷ density) × 1000) ÷ buckets size