Calculator
Floor-area adder
Measure each room you want cleaned, wall to wall. Add the maker's coverage per charge from the listing to see whether one charge is enough.
In short
Room area = length x width. 1 ft = 0.3048 m, and 1 m² = 10.7639 sq ft. If the total is more than the coverage per charge, most robots recharge and resume where they stopped.
Add up your rooms
Measure in
- 16.2 m²
- 12.2 m²
- 12.0 m²
Total area
40.4 m²
In square feet
434 sq ft
Charges
One charge
1 ft = 0.3048 m, 1 m² = 10.7639 sq ft. m² rounded to 0.1, sq ft to whole numbers. Type decimals with a point.
Typical room sizes
Typical values for UK homes, to sanity-check your own measurements. Rooms vary a lot, so measure yours.
| Room | Typical size | Area |
|---|---|---|
| Single bedroom | 3 x 2.4 m | 7.2 m² |
| Double bedroom | 3.6 x 3.2 m | 11.5 m² |
| Living room | 4.5 x 3.6 m | 16.2 m² |
| Kitchen | 3.8 x 2.8 m | 10.6 m² |
| Hallway | 4 x 1.2 m | 4.8 m² |
m² and sq ft
| Square metres | Square feet |
|---|---|
| 20 m² | 215 sq ft |
| 40 m² | 431 sq ft |
| 60 m² | 646 sq ft |
| 80 m² | 861 sq ft |
| 100 m² | 1,076 sq ft |
| 150 m² | 1,615 sq ft |
| 200 m² | 2,153 sq ft |