// multi-utility computation suite · offline · instant · precise
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tool.concrete-mix-design Calculator
Calculates cement, sand, and aggregate quantities for a concrete mix design at a given water-to-cement ratio and target strength. The w/c ratio is the primary driver of concrete strength — every 0.05 increase reduces 28-day strength by roughly 5 MPa.
Inputs
Strength Mpa
Reference formula or conversion factor shown for context.
Water Cement Ratio
Reference formula or conversion factor shown for context.
Aggregate Size Mm
Reference formula or conversion factor shown for context.
Admixture Pct
Age in completed years. Many health and fitness formulas adjust for age.
Results
cement (kg/m³)
Sample size or count used in the calculation.
water (kg/m³)
The value at the specified point or condition.
aggregate (kg/m³)
The value at the specified point or condition.
admixture (kg/m³)
Reference formula or conversion factor shown for context.
w/c ratio
The proportional relationship between two quantities.
Abrams law
Reference formula or conversion factor shown for context.