Regional mix designChoose your project worksheetChoose

Indian M-grade examples are identified on the page. Quantity, cost and moisture arithmetic alone does not demonstrate compliance with a national standard. Choose a regional worksheet for a project-specific trial.

CONCRETE RATIO TOOLS

Concrete ratio tools

Design a concrete mix, plan its volume, scale a cement batch and estimate material costs with connected calculators.

START WITH THE MIX

Concrete mix design calculator

Choose M10–M60, see ingredient quantities and follow the scientific method.

Slab & footing volume

Calculate concrete volume from dimensions, then use it in your mix design.

50 kg cement-bag calculator

Scale a designed mix to the cement you have available.

Nominal mix calculator

Explore IS 456 Table 9 limits for M10, M15 and M20.

Concrete mix cost calculator

Price each ingredient using your own supplier rates.

Water-cement ratio calculator

Calculate water, binder or ratio and explore the strength reference graph.

Turn SSD quantities into a wet batch ticket

Follow the aggregate moisture correction worked example to see why wet sand changes both the aggregate weight and the water added at the mixer.

Understand concrete ratios before choosing a tool

Read the concrete mix ratio guide for common ratio notation, the difference between mass and volume, and why M25 and higher grades need a designed mix.

Worked concrete mix examples

Three different lessons: minimum cement content in M20, strength-based selection in M25 and aggregate moisture in M30.

M20Ratio & worked example →M25Ratio & worked example →M30Ratio & worked example →