Room Floor Area Calculator

Our room floor area calculator takes the width and length of your room and calculates the room size in m2.

Luis Anaya

Luis Anaya

15 Jan 2021

Room Floor Area Calculator

Use this area calculator to work out the floor area of a room.

floor area

A = width * length

If your room is rectangular, then simply enter the width and depth of the room and the unit of measure, and the resulting floor area of the room will be calculated in several different units of measure, both metric and imperial, useful if you are meauring the room in one unit but for example the floor tiles you want are measured in a different unit.

If on the other hand your floor area is not a perfect rectangle try breaking the room down into rectangular sections and enter the dimensions for each section into the calculator below, adding each result together to give you the total floor area.

inputs
results

Calculated Room Size

unit
0

Equivalents

0 __ are equal to...

inches
0
feet
0
yards
0
miles
0
centimetres
0
metres
0
kilometres
0

How to work out the m2 (square metres) of a room

  • 1. Measure the width of your room in metres.
  • 2. Measure the length of your room in metres.
  • 3. Multiply room width by room length to get room area.

Example data:

3 metres wide x 6 metres long = 18 m2 (square metres).

floor area

Area in m2 = Width metres * Length metres

FAQs

Have a question about this calculator? See our list of frequently asked questions below.

How do you find the area of a room?
To calculate the area of a room, multiply its width by its length. Formula: Area = Width * Length.
How to work out m2 (square metres)
To calculate m2 measure the width in metres then measure the length in metres. Multiplying the width by length will give the result in m<sup>2</sup> (square metres).
When is it necessary to calculate the floor area of a room?
It is necessary to calculate the floor area of a room when working out how many floor tiles, how much carpets, how much screed etc might be required when resurfacing your floor.

Other Area Calculators