OhMyCalc

Water-Cement Ratio Calculator

Determine the governing water-cement ratio based on target strength and exposure conditions.

How to Use the Water-Cement Ratio Calculator

  1. Enter the target compressive strength in MPa.
  2. Select the exposure condition.
  3. Click Calculate.
  4. Use the lower (governing) W/C ratio.

Casos de Uso

Fórmula

W/C by strength and by exposure class

Preguntas Frecuentes

How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.