IS 10262 · IS 456 · Free Civil Engineering Tool
Concrete Mix Design Calculator
Compute mix proportions per IS 10262:2009/2019 — with exposure condition (IS 456 Table 5), chemical admixture (water reduction) and specific gravity inputs. All values update instantly as you change any input.
Cement
384
kg/m³
Water
192
kg/m³
Fine Aggregate
600
kg/m³
Coarse Agg.
1187
kg/m³
Total / m³
2363
kg/m³
Estimated Mix Proportion
1 : 1.56 : 3.09 : 0.5
Cement : Fine Aggregate : Coarse Aggregate : Water
Design W/C Ratio
0.5
Target Mean Strength
31.6 MPa
Min. Cement (exposure)
300 kg/m³
Max. W/C (exposure)
0.5
Academic estimation only — per IS 10262:2009/2019 and IS 456:2000. Final mix design must be validated with actual material-test data, sieve analysis, trial mixes, absorption corrections and durability checks before use on site.
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