Concrete Mix Design
Estimate a theoretical dry mix composition for 1 m³ of concrete. Select requirements and materials, then press Calculate to review quantities and engineering guidance.
Free Concrete Mix Design Calculator — EN 206
ConStruct Free WEB is a free online concrete mix design calculator for civil engineers, concrete technologists and construction professionals. Calculate preliminary concrete mix proportions for 1 m³ using selected EN 206-related requirements and the absolute volume method.
Evaluate water-cement ratio limits, minimum cement content, concrete strength and exposure classes, and estimated quantities of cement, water, fine aggregate and coarse aggregate.
Need more than a preliminary concrete mix?
For advanced concrete mix design, including aggregate moisture corrections, plasticising admixtures, two coarse aggregate fractions, material cost analysis and printable mix design reports, explore ConStruct Master Edition. You can also read the calculation methodology and user guide.