Feet and inches to meters: in short
Multiply the feet by 0.3048 and the inches by 0.0254, then add them up. 5′ 11″ is 1.803 m, and a wall of 12′ 6″ is 3.81 m. Both factors are exact.
How the conversion works
Meters = feet × 0.3048 + inches × 0.0254. A foot is 12 inches and an inch is exactly 2.54 cm, so a foot is exactly 30.48 cm.
Type the length the way you measure it: 12′ 6″, 12 ft 6 in, or with a fraction like 12′ 6½″ or 6 3/8″. The converter reads it the same way the Squaremetry editor does.
Common lengths
| Feet and inches | Meters | Centimeters |
|---|---|---|
| 1′ | 0.305 m | 30.48 cm |
| 2′ | 0.61 m | 60.96 cm |
| 3′ | 0.914 m | 91.44 cm |
| 5′ | 1.524 m | 152.4 cm |
| 5′ 6″ | 1.676 m | 167.64 cm |
| 5′ 11″ | 1.803 m | 180.34 cm |
| 6′ | 1.829 m | 182.88 cm |
| 8′ | 2.438 m | 243.84 cm |
| 10′ | 3.048 m | 304.8 cm |
| 12′ | 3.658 m | 365.76 cm |
| 12′ 6″ | 3.81 m | 381 cm |
| 14′ | 4.267 m | 426.72 cm |
| 16′ | 4.877 m | 487.68 cm |
| 20′ | 6.096 m | 609.6 cm |
Room sizes in meters
Add a width in the converter and you also get the floor area in square feet and square meters. Draw this room opens it in the editor in meters, inside the walls.
| Room in feet | Room in meters |
|---|---|
| 10′ × 10′ | 3.048 m × 3.048 m |
| 10′ × 12′ | 3.048 m × 3.658 m |
| 12′ × 12′ | 3.658 m × 3.658 m |
| 12′ × 14′ | 3.658 m × 4.267 m |
| 14′ × 16′ | 4.267 m × 4.877 m |
| 20′ × 20′ | 6.096 m × 6.096 m |
Round once, at the end
Convert the exact length and round the answer, not the feet and inches separately. A tape measure in inches is read to 1/8 inch, about 3 mm, so two decimals in meters are as precise as the tape.
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 October 1, 2026. Found a mistake? Send us a message.