FULL CALCULATOR
IS 10262:2019 Concrete Mix Design
Preliminary proportioning for 1 m³. Enter the project requirements and material properties to calculate a transparent preliminary mix for 1 m³. Every major step is shown so you can check the result.
2019 edition
Engineering scope: defaults to the current IS 10262:2019 method (switch to 2009 legacy in the Standard field). Results are for preliminary proportioning and trial batches. Durability limits come from IS 456 — pick an exposure condition to fill them, or enter your own.
PRELIMINARY MIX
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Target strength-N/mm²
Adopted w/c-lower controlling value
Water-kg/m³
Cementitious-kg/m³
Trial mix proportions
Aggregate fractions are shown separately. For 20 mm nominal aggregate, the default blend is 60% 20 mm + 40% 10 mm, matching the Annex A grading example; change the fractions to your approved IS 383 blend.
| Ingredient | kg/m³ | Volume m³ |
|---|
Mix ratio by mass (cement : water : fine : coarse) = -
Coarse aggregate fractions
IS 10262 requires suitable combination of coarse fractions to achieve the required overall grading under IS 383; it does not prescribe one universal mass split.
Calculation trail
Aggregate moisture correction
| Aggregate | SSD | As-batched | Water effect |
|---|
Trial mixes
Each trial keeps the design water content and varies the free w/c ratio; cement and aggregates are recalculated. Edit any w/c below to explore — these same values drive the paid PDF report.
| Trial | w/c | Water | Cement | SCM | Fine | Coarse | Mix 1:F:C |
|---|
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See the paid report before you buy
The example below is the preloaded M40 benchmark report. A watermark is applied to the preview; your paid report is generated from your own calculation.
