Concrete Mix Ratio Calculator

Calculate Concrete Mix Materials by Volume

Input Fields

Width

W

m

Height

H

m

Depth

D

m

CalculateReset

Calculate automaticallyIf enabled, the result will update automatically when you change any value.

Your Results

VolumeV

Cement requiredC

Sharp Sand requiredS

Gravel requiredG

Water requiredW

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Concrete Material Ratio Formula

$$\text{Volume} = W \cdot H \cdot D$$ $$\text{Cement} = \text{Volume} \cdot 320$$ $$\text{Sharp Sand} = \text{Volume} \cdot 600$$ $$\text{Gravel} = \text{Volume} \cdot 1200$$ $$\text{Water} = \text{Volume} \cdot 176$$

Where:

• $$W$$, $$H$$, $$D$$ — Width, Height, and Depth of the structure (in meters)
• $$Volume$$ — total concrete volume
• Resulting units typically in kg or liters depending on context

This calculator uses a standard concrete mix ratio to determine how much cement, sand, gravel, and water is needed based on the input volume. It’s ideal for planning medium- to large-scale concrete projects like slabs, foundations, and pavement. By using fixed material coefficients, it simplifies quick estimating and procurement.