Free · IS 10262:2019 & IS 456:2000

Concrete Mix Design Calculator

Design M15–M50 concrete by the IS 10262:2019 method. It checks the IS 456 durability limits and gives cement, water, sand and aggregate per m³, the mix ratio, and a site batch corrected for aggregate moisture.

Design inputs

Results update as you change inputs
Concrete grade
Max. size of coarse aggregate
Sand grading zone (IS 383)
Material properties & site options

Mix design result

Mix ratio by mass
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Per m³ of concrete (saturated surface-dry aggregates)

Batch

Step-by-step calculation (IS 10262:2019)

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Understand the water–cement ratio
Why w/c controls strength and durability, with IS 456 limits and a quick reference table.
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