Free calculator
Concrete Mix Design Calculator
Calculate material quantities for any mix ratio — M15, M20, M25, or custom. Dry volume factor of 1.54 applied for site quantities.
concrete mix design calculatorcement sand ratio calculatorM20 M25 mix calculator
Formula: Dry volume = Wet volume × 1.54 · Materials split by ratio parts
Enter dimensions
Adjust values for your site. Results update instantly.
cu.m
Results
Cement bags (50 kg)64
Sand (cu.m)4.40
Aggregate (cu.m)8.80
Dry volume (cu.m)15.400
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