CONSTRUCTION TOOL

Concrete Slab Calculator

Estimate slab concrete volume with a waste allowance in metric or imperial units.

Concrete Slab Calculator

FREE ONLINE TOOL

STEP BY STEP

How to use concrete slab calculator

  1. Calculate or generate the result.
  2. Review the method and example.

IN PRACTICE

Example

5 × 4 m × 0.15 m = 3 m³; with 10% waste = 3.3 m³.

GOOD TO KNOW

What method and assumptions are used?

Volume = length × width × thickness. Uniform rectangular slab; does not size foundations, reinforcement or structural thickness.