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Concrete Mix Calculator
Calculate cement bags, sand, coarse aggregate and water for M10, M15, M20 and M25 nominal concrete mixes from the wet volume.
Concrete Mix Calculator
Cement403 kg for 1 m³ of M20
Sand
0.42 m³ (14.8 ft³)
Coarse aggregate
0.84 m³ (29.7 ft³)
Water (w/c 0.5)
202 litres
Volume in yd³
1.31
Nominal mixes with the 1.54 dry-volume factor (IS 456 practice). For M25 and above, structural work should use a design mix tested in a lab. Cure for at least 7 days (OPC).
Planning estimates only. Building codes, loads and material specs vary — have a licensed engineer or contractor confirm quantities and safety requirements. Disclaimer
Important
Quantity estimates for planning and ordering. Structural members, reinforcement and footings must be designed by a qualified engineer to local code.
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