In short
To convert square feet to square meters, multiply by 0.092903. One square foot is exactly 0.09290304 m², so 100 sq ft is 9.29 m² and 1,000 sq ft is 92.90 m².
The formula
Square meters = square feet × 0.09290304. The number is exact: a foot is 0.3048 m by definition, and 0.3048 × 0.3048 = 0.09290304.
The other way: square feet = square meters × 10.7639. In your head, divide square feet by 10 and take off 7% for a close estimate.
Common sizes
| Square feet | Square meters |
|---|---|
| 100 | 9.29 |
| 120 | 11.15 |
| 144 | 13.38 |
| 150 | 13.94 |
| 200 | 18.58 |
| 250 | 23.23 |
| 300 | 27.87 |
| 400 | 37.16 |
| 500 | 46.45 |
| 750 | 69.68 |
| 1,000 | 92.90 |
| 1,500 | 139.35 |
| 2,000 | 185.81 |
| 2,500 | 232.26 |
| 3,000 | 278.71 |
Room sizes in both units
Convert the length and the width first when you want the room in meters too. The area comes out the same either way.
| Room in feet | In meters | Square feet | Square meters |
|---|---|---|---|
| 10 × 10 ft | 3.05 × 3.05 m | 100 sq ft | 9.29 m² |
| 10 × 12 ft | 3.05 × 3.66 m | 120 sq ft | 11.15 m² |
| 12 × 12 ft | 3.66 × 3.66 m | 144 sq ft | 13.38 m² |
| 12 × 14 ft | 3.66 × 4.27 m | 168 sq ft | 15.61 m² |
| 14 × 16 ft | 4.27 × 4.88 m | 224 sq ft | 20.81 m² |
| 20 × 20 ft | 6.10 × 6.10 m | 400 sq ft | 37.16 m² |
Round at the end, not per room
Add up the rooms in square feet and convert the total once. Converting each room, rounding it and then adding the rounded numbers can put the total off by a few tenths of a square meter.
Square meters to square feet
| Square meters | Square feet |
|---|---|
| 10 | 107.6 |
| 20 | 215.3 |
| 50 | 538.2 |
| 75 | 807.3 |
| 100 | 1,076.4 |
| 150 | 1,614.6 |
| 200 | 2,152.8 |
Figure 1. One floor of 25 × 17 ft. The rooms add up to 425 sq ft.
About this page · Written by the Squaremetry team. Last checked on September 27, 2026. Found a mistake? Send us a message.