Length Converter
Metric and imperial distances.
1 foot = 304.8 mm. Enter any value to convert feet (ft) to millimeters (mm), or use the table below for common values.
mm = ft × 304.8
Example: 10 ft = 3,048 mm. To convert the other way, use ft = mm × 0.003280839895.
Quick mental estimate: multiply by about 300.
| Feet (ft) | Millimeters (mm) |
|---|---|
| 1 ft | 304.8 mm |
| 2 ft | 609.6 mm |
| 3 ft | 914.4 mm |
| 4 ft | 1,219.2 mm |
| 5 ft | 1,524 mm |
| 6 ft | 1,828.8 mm |
| 7 ft | 2,133.6 mm |
| 8 ft | 2,438.4 mm |
| 9 ft | 2,743.2 mm |
| 10 ft | 3,048 mm |
| 15 ft | 4,572 mm |
| 20 ft | 6,096 mm |
| 25 ft | 7,620 mm |
| 30 ft | 9,144 mm |
| 40 ft | 12,192 mm |
| 50 ft | 15,240 mm |
| 75 ft | 22,860 mm |
| 100 ft | 30,480 mm |
| 250 ft | 76,200 mm |
| 500 ft | 152,400 mm |
| 1,000 ft | 304,800 mm |
The foot is 12 inches, or exactly 0.3048 meters. It is used for height, room dimensions and aircraft altitude.
The millimeter is one thousandth of a meter. It is the standard unit on engineering drawings, for rainfall, and for screen, sheet and tool sizes.
Use the formula mm = ft × 304.8. For example, 10 ft = 3,048 mm.
1 ft = 304.8 mm.
Use ft = mm × 0.003280839895. 1 mm = 0.003280839895 ft.