← All Calculators Areas & Layout

Room Area Calculator

Formula: Length x Width

Example

Formula: Length x Width
= 5 m x 4 m
= 20 m2

Choose units for length and width, then pick a result unit (m2 or ft2).

Tip: Choose your result unit on the right before calculating.

Step-by-step calculation

  1. Enter room length and width with units.
  2. Select the result unit you want (m2 or ft2).
  3. Calculate to see the room area and steps in the selected unit.

FAQ

What about irregular rooms?
Split into rectangles and add the areas.
Why use m2?
It is standard for flooring and paint estimates.