Convert Foot to Millimeter
Use this free converter to change feet (ft) into millimeters (mm). Foot and millimeter both measure length. As a quick reference, 1 ft equals 304.8 mm, and 1 mm equals 0.0032808399 ft.
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Millimeter (mm)
304.8
1 ft = 304.8 mm
Length conversion table
| Foot | Millimeter |
|---|---|
| 0.01 | 3.048 |
| 0.1 | 30.48 |
| 0.5 | 152.4 |
| 1 | 304.8 |
| 2 | 609.6 |
| 3 | 914.4 |
| 5 | 1524 |
| 10 | 3048 |
| 20 | 6096 |
| 25 | 7620 |
| 50 | 15240 |
| 100 | 30480 |
| 1,000 | 304800 |
How to convert Foot to Millimeter
Multiply the foot value by 304.8 to get millimeters.
- Enter the number of feet you want to convert.
- The converter instantly shows the equivalent value in millimeters.
- Worked example: 15 ft × 304.8 = 4572 mm.
- Use the swap button to reverse the conversion (millimeter to foot).
About these units
Foot (ft)
- Definition
- A foot (ft) is an imperial unit of length equal to 12 inches or exactly 0.3048 meters.
- History
- Derived from the human foot, it varied across regions until the international foot was defined in 1959.
- Current use
- Feet are widely used for height, room dimensions, and aviation altitude, especially in the US and UK.
Millimeter (mm)
- Definition
- A millimeter (mm) is one thousandth of a meter, used where small, precise measurements are needed.
- History
- Like other metric subdivisions it was defined in the 1790s using the prefix "milli-" (one thousandth).
- Current use
- Engineers, machinists, and manufacturers specify tolerances in millimeters, and rainfall is commonly reported in mm.
Frequently asked questions
How many millimeters are in a foot?
There are 304.8 mm in 1 ft. To convert, multiply the number of feet by 304.8.
How do I convert feet to millimeters?
Multiply the foot value by 304.8 to get millimeters. For example, 10 ft = 3048 mm.
Is this foot-to-millimeter converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Foot to other length units
| Unit | 1 Foot equals |
|---|---|
| Meter (m) | 0.3048 m |
| Kilometer (km) | 0.0003048 km |
| Centimeter (cm) | 30.48 cm |
| Millimeter (mm) | 304.8 mm |
| Micrometer (µm) | 304800 µm |
| Nanometer (nm) | 304800000 nm |
| Mile (mi) | 0.00018939394 mi |
| Yard (yd) | 0.33333333 yd |
| Inch (in) | 12 in |
| Nautical Mile (nmi) | 0.00016457883 nmi |
| Light Year (ly) | 3.2217e-17 ly |