Convert Feet to Millimeters
ft to mm · length conversion
What are feet and millimeters?
A foot is 12 inches (0.3048 m), commonly used for height and short distances in the US. A millimeter is one-thousandth of a meter, about the thickness of a credit card. For scale: a doorway is about 2 m (6.6 ft) tall, and a marathon is 42.2 km (26.2 mi).
How to convert feet to millimeters
1 ft = 304.8 mm. To convert, multiply the number of feet by 304.8. For example, 5 ft = 1,524 mm, and 20 ft = 6,096 mm. To go the other way, multiply millimeters by 0.00328084 (since 1 mm = 0.00328084 ft).
Feet to Millimeters conversion table
| Feet (ft) | Millimeters (mm) |
|---|---|
| 1 | 304.8 |
| 2 | 609.6 |
| 5 | 1,524 |
| 10 | 3,048 |
| 20 | 6,096 |
| 50 | 15,240 |
| 100 | 30,480 |
FAQ
What is 1 ft in mm?
1 ft = 304.8 mm. To convert any amount, multiply the number of feet by 304.8.
How do I convert millimeters back to feet?
Go the other way: 1 mm = 0.00328084 ft, so multiply millimeters by 0.00328084 to get feet.
Is a feet bigger than a millimeter?
Yes — 1 ft is the larger unit, equal to 304.8 mm.
Are these length conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.