Convert feet to millimeters
Foot (ft) to millimeter (mm). One foot equals 304.8 millimeters.
Formula
Foot to millimeter conversion table
| Feet | Millimeters | Millimeters | Feet |
|---|---|---|---|
| 1 ft | 304.8 mm | 1 mm | 0.003281 ft |
| 2 ft | 609.6 mm | 2 mm | 0.006562 ft |
| 3 ft | 914.4 mm | 3 mm | 0.009843 ft |
| 5 ft | 1524 mm | 5 mm | 0.016404 ft |
| 10 ft | 3048 mm | 10 mm | 0.032808 ft |
| 20 ft | 6096 mm | 20 mm | 0.065617 ft |
| 50 ft | 15240 mm | 50 mm | 0.164042 ft |
| 100 ft | 30480 mm | 100 mm | 0.328084 ft |
| 500 ft | 152400 mm | 500 mm | 1.6404 ft |
| 1000 ft | 304800 mm | 1000 mm | 3.2808 ft |
To convert feet to millimeters, multiply the number of feet by 304.8. One foot equals 304.8 millimeters, and one millimeter equals 0.003281 feet, so the relationship is fixed and exact. As a worked example, 10 ft comes to 3048 mm. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a length conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common foot values already worked out in millimeters, plus the reverse millimeter to foot direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many millimeters are in a foot?
One foot equals 304.8 millimeters. The ratio is constant, so you can multiply any number of feet by 304.8 to get millimeters.
What is the formula to convert feet to millimeters?
Use millimeters = feet × 304.8. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert millimeters back to feet?
Go the other way by using one millimeter equals 0.003281 feet. You can also press the swap button in the converter above to flip the direction in one click.
Is this foot to millimeter converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.