Concrete Mix Calculator
Calculate the right proportions of cement, sand, and aggregate for your concrete mix based on standard mix ratios.
Mix Parameters
Mix Ratio Guide
- 1:2:3 - Driveways, floors, footings
- 1:1.5:3 - Columns, beams, slabs
- 1:2:4 - Sidewalks, patios
- 1:3:6 - Mass concrete, foundations
Mix Ratio
1:2:3
Total Volume: 0.76 m³ (1.00 yd³)
Cement
282.6 kg
6 bags (50kg)
7 bags (94lb)
Sand
628.0 kg
0.39 m³
13.86 ft³
Aggregate
883.1 kg
0.59 m³
20.79 ft³
Water
141.3 L
37.3 gallons
Total Mix Weight
1934.9 kg (4.27 tons)
Understanding Concrete Mix Ratios
What is Mix Ratio?
The mix ratio represents the proportions of cement, sand, and aggregate by volume. For example, 1:2:3 means 1 part cement, 2 parts sand, and 3 parts coarse aggregate.
Choosing the Right Mix
Higher cement content (1:1:2) provides greater strength but costs more. Leaner mixes (1:3:6) are economical for mass concrete where high strength is not critical.