Foot to Millimeter Converter
Type a value — the answer appears instantly. 1 ft = 304.8 mm.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
304.8 millimeters
= 0.3048 m= 0.0003048 km
equals 304.8 millimetersFormula: mm = ft × 304.8
Foot to Millimeter formula
mm = ft × 304.8
Convert 5 feet to millimeters
- Start with 5 feet.
- Multiply by the conversion factor: 5 × 304.8 = 1,524.
- So 5 ft = 1,524 mm.
Foot to Millimeter conversion table
| Feet (ft) | Millimeters (mm) |
|---|---|
| 0.01 ft | 3.048 mm |
| 0.1 ft | 30.48 mm |
| 0.25 ft | 76.2 mm |
| 0.5 ft | 152.4 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 |
| 5,000 ft | 1,524,000 mm |
| 10,000 ft | 3,048,000 mm |
Unit definitions
What is a foot?
The foot is an imperial and US customary unit equal to exactly 0.3048 metres, or twelve inches. It remains the standard unit for human height, building heights, and aviation altitude in the United States and United Kingdom. Three feet make one yard.
What is a millimeter?
The millimetre is one thousandth of a metre, an SI unit of length. It is the finest gradation on most metric rulers and is standard for engineering drawings, machining tolerances, and rainfall measurement. Ten millimetres make one centimetre.
Frequently asked questions
How many millimeters are in one foot?
One foot equals 304.8 millimeters (1 ft = 304.8 mm).
How do I convert feet to millimeters?
Multiply the value in feet by 304.8. For example, 10 ft × 304.8 = 3,048 mm.
Which is bigger — a foot or a millimeter?
A foot is bigger: one foot contains 304.8 millimeters.
Is this foot to millimeter converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.