CONCRETE MIX DESIGN

ACI 211.1-22 Concrete Mix Design Calculator

Calculate a transparent preliminary concrete mix with your own f′c, slump, maximum aggregate size, fineness modulus and air content — in US customary units with a metric toggle. Then buy a detailed $4.99 calculation report for your files.

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Build a mix you can actually check

Design Mix Concrete works through the ACI 211.1-22 absolute-volume method — water content, water-cement ratio, cementitious content, and coarse and fine aggregate volumes — and shows the calculation trail at each step, not just a final table. It's built for contractors sizing a pour, engineers checking a preliminary proportioning, and students learning the method. Results are preliminary: always verify against the current ACI 211.1 / ACI 318 editions, project specifications, material test data and trial batches before use on a project.

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Useful for 3000 to 5000 psi concrete

Start from a typical strength class as a reference point, then enter the actual specified f′c, slump and air content for your project.

3000 psi concreteTypical use and w/c ratio 4000 psi concreteTypical use and w/c ratio 5000 psi concreteTypical use and w/c ratio Custom f′cEnter your own strength and slump

Key tools

CalculatorFull ACI 211.1-22 mix design with a calculation trail MethodThe 8-step ACI 211.1 proportioning method Grades3000, 4000 and 5000 psi reference Cost calculatorEstimate material cost per cubic yard

Frequently asked questions

Which standard does this use?

Proportioning follows ACI 211.1-22, the standard practice for selecting proportions for normal, heavyweight and mass concrete. Durability and exposure limits — the maximum w/c and minimum f′c a project may require — follow ACI 318.

Is it free?

Yes. Design Mix Concrete is free to use and supported by advertising. The $4.99 report is optional.