Concrete Mix Ratio Calculator (M10–M25)

Concrete Mix Ratio Calculator

This calculator estimates cement, sand, and aggregate required for common concrete grades.

Concrete is the backbone of every construction project. Whether you are building a house, a road, or a commercial structure, the strength of your construction depends on the quality of concrete used. One of the most important factors in concrete quality is the correct proportion of materials. This is where a concrete mix ratio calculator becomes very useful.

A concrete mix ratio calculator helps you calculate the exact proportion of cement, sand, and aggregate required for different grades of concrete. Instead of guessing or relying on rough estimates, you can get accurate values in seconds.

In this article, you will learn everything about concrete mix ratios from M10 to M25, how to calculate them, why they matter, and how a concrete mix ratio calculator can make your work easier and more efficient.

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What is Concrete Mix Ratio Calculator?

Concrete mix ratio is the proportion of materials used to make concrete. These materials include:

  • Cement
  • Sand (Fine Aggregate)
  • Aggregate (Coarse Aggregate)
  • Water

The ratio is written in the form:

👉 Cement : Sand : Aggregate

For example:
👉 M20 = 1 : 1.5 : 3

This means:

  • 1 part cement
  • 1.5 parts sand
  • 3 parts aggregate

A concrete mix ratio calculator helps you convert this ratio into actual quantities.