Split awkward rooms
An L-shaped room is two rectangles: add one row per part and the total adds up on its own.
Free tool
Area calculator
Enter the length and width of each room: the area updates as you type, room by room and in total. Nothing to install, nothing to send.
| Room | Length (m) | Width (m) | Area (m²) | Remove room |
|---|---|---|---|---|
| 22.36 | ||||
| 9.52 | ||||
| 13.12 |
This gives the floor area of rectangular rooms, walls excluded. It is not a legal floor-area survey, which follows its own rules and is measured on site.
What next?
Measure during the visit
A laser measure, a tablet, and the numbers are typed in on the spot instead of copied out that evening.
Turn it into a plan
“Create my plan” opens the editor with those rooms already placed: dimensioned 2D, 3D and PDF export.
Frequently asked questions
Multiply length by width: a room 5.20 m by 4.30 m is 22.36 m². For an L- or T-shaped room, split it into rectangles, work out each one and add them up.