Free tool
Material Calculator
Estimate quantities for concrete, brickwork, plaster, paint and tiles. Enter your dimensions and the quantities update instantly.
Concrete — estimated quantities
- Wet volume
- 3 m³
- Dry volume (× 1.54)
- 4.62 m³
- Cement
- 26 bags · 1,270.1 kg
- Sand (fine aggregate)
- 1.323 m³ · 46.7 cft
- Aggregate (20 mm)
- 2.646 m³ · 93.4 cft
- Water (w/c 0.5)
- 605 litres
Methodology & formulas used
- Wet volume: Length × Width × Thickness
- Dry volume: Wet volume × 1.54
- Cement: (1/5.5) × dry volume × 1440 kg/m³ × wastage
- Sand / Aggregate: Mix share of dry volume × wastage
- Water: Pre-wastage cement weight × w/c 0.5 for M20 — wastage is not applied to water
* These quantities are approximate and based on standard nominal mixes and common site practice. Actual consumption varies with material quality, workmanship, wastage on site and the specifications in your drawings. Always confirm with your engineer or contractor before ordering.