← All Calculators Concrete & Foundations

Slab Calculator

Formula: Length x Width x Thickness

Select length, width, and thickness units. The slab volume is shown in m3.

Example

Formula: Length x Width x Thickness
= 6 m x 4 m x 0.1 m
= 2.40 m3

Step-by-step calculation

  1. Enter slab length, width, and thickness.
  2. Select units for each measurement.
  3. Calculate to get slab volume in m3.

FAQ

Why use meters?
Concrete suppliers use cubic meters.
Should I add extra?
Add 5–10% for waste and uneven ground.