Feet to mm Converter
Enter a value to see feet to mm conversion
Popular Feet to mm Values
| Feet (ft) | Millimeters (mm) |
|---|---|
| 0.1 | 30.48 |
| 0.5 | 152.4 |
| 1 | 304.8 |
| 2 | 609.6 |
| 3 | 914.4 |
| 5 | 1524 |
| 10 | 3048 |
| 20 | 6096 |
| 50 | 15240 |
| 100 | 30480 |
Feet to mm Formula
Multiply feet by 304.8 to get millimeters.
- mm = feet × 304.8
- Example: 15 ft = 15 × 304.8 = 4572 mm
- Reverse: feet = mm ÷ 304.8
Visual Feet to mm Scale
Feet vs mm Around the Globe
Feet remain standard in the US for construction and real estate, where room sizes list as 10 ft × 12 ft. UK uses feet alongside meters for heights. Metric countries prefer mm for precision in manufacturing—1 ft matches a men’s shoe size 14 US.
Common Feet to mm Questions
How many mm equal 1 foot?
Exactly 304.8 mm, set internationally since 1959.
What about inches to mm?
1 inch = 25.4 mm; since 1 ft = 12 inches, total 304.8 mm.
Is the foot exactly 300 mm?
No, precise value is 304.8 mm or 0.3048 meters.
Feet to cm instead?
1 ft = 30.48 cm (divide mm by 10).
Historical foot length?
Varied from 250-335 mm before standardization.
Best for woodworking?
Use mm for tools; convert plans from ft first.
References
National Institute of Standards and Technology. (2023). Metric Conversion Guide. NIST Special Publication 811.
International Bureau of Weights and Measures. (2019). The International System of Units (SI). BIPM.
US customary units definitions, Federal Register, 1959 standardization of foot as 0.3048 m.