Concrete Mix Ratio Calculator

• Free online concrete mix ratio calculator
• Quickly get mix proportions by strength grade, or customize calculations based on design strength, aggregate type, slump, etc. to compute the water-cement ratio and material amounts per cubic meter

1. Open the tool page — no download or installation needed
2. Pick a mode: use Preset to choose a strength grade and concrete type, or choose Custom and enter design strength, cement grade, aggregate type, max size, and slump; then set the volume (m³)
3. Click "Calculate" to see the water-cement ratio, per-m³ material amounts, and mass ratio on the right; use Copy to save the result or Reset to start over

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online concrete mix ratio calculator. Quickly get mix proportions by strength grade, or customize calculations based on design strength, aggregate type, slump, etc.

Open the tool page — no download or installation needed Pick a mode: use Preset to choose a strength grade and concrete type, or choose Custom and enter design strength, cement grade, aggregate type, max size, and slump; then set the volume (m³) Click "Calculate" to see the water-cement ratio, per-m³ material amounts, and mass ratio on the right; use Copy to save the result or Reset to start over

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, Concrete Mix Ratio Calculator is completely free. No download or installation required — it runs right in your browser.