Foot to Millimeter Converter
Convert Foot (ft) to Millimeter (mm) instantly. 1 ft = 304.8 mm.
Length Converter
31 units available
1 ft = 304.8 mm
Formula:
mm = ft × 304.8With your value: 1 ft = 304.8 mm
How big is that?
Everyday references on a logarithmic scale, all expressed in foot so you can sanity-check the result.
Other Foot to Millimeter conversions
Foot to Millimeter Conversion Table
| Foot (ft) | Millimeter (mm) |
|---|---|
| 0.5 | 152.4 |
| 1 | 304.8 |
| 2 | 609.6 |
| 5 | 1,524 |
| 10 | 3,048 |
| 15 | 4,572 |
| 20 | 6,096 |
| 25 | 7,620 |
| 50 | 15,240 |
| 100 | 30,480 |
| 250 | 76,200 |
| 500 | 152,400 |
| 1000 | 304,800 |
Millimeter to Foot Conversion Table
| Millimeter (mm) | Foot (ft) |
|---|---|
| 0.5 | 0.00164 |
| 1 | 0.003281 |
| 2 | 0.006562 |
| 5 | 0.016404 |
| 10 | 0.032808 |
| 15 | 0.049213 |
| 20 | 0.065617 |
| 25 | 0.082021 |
| 50 | 0.164042 |
| 100 | 0.328084 |
| 250 | 0.82021 |
| 500 | 1.64042 |
| 1000 | 3.28084 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Foot (ft)
Length
1 foot = 0.3048 m exactly (international foot, 1959).
The US survey foot (1200/3937 m) was deprecated for new work on 31 December 2022 and differs by about 2 ppm.
Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442
US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01
Millimeter (mm)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Foot to Millimeter
To convert from Foot (ft) to Millimeter (mm), multiply the value by 304.8.
Formula: mm = ft × 304.8
Reverse: ft = mm × 0.0032808399
Step-by-Step Example
- Start with your value in Foot. For example: 5 ft
- Multiply by the conversion factor: 5 x 304.8
- The result is: 1,524 mm
About Foot
The foot is an imperial unit equal to 12 inches or 0.3048 meters. It remains widely used in the US, UK, and Canada for everyday measurements.
Fun Fact: The foot was originally based on the length of a human foot, which varied from region to region.
Common uses: height measurement, real estate, construction.
About Millimeter
The millimeter equals one thousandth of a meter and is used for precise measurements in engineering and manufacturing.
Common uses: engineering, rainfall measurement, manufacturing.
Frequently Asked Questions
How many Millimeter are in 1 Foot?
There are exactly 304.8 Millimeter in 1 Foot. This means the conversion factor from Foot to Millimeter is 304.8.
What is the formula to convert Foot to Millimeter?
The formula to convert Foot to Millimeter is: mm = ft × 304.8. For example, to convert 10 Foot to Millimeter, you would multiply 10 by 304.8.
What is a Foot?
The foot is an imperial unit equal to 12 inches or 0.3048 meters. It remains widely used in the US, UK, and Canada for everyday measurements.
What is a Millimeter?
The millimeter equals one thousandth of a meter and is used for precise measurements in engineering and manufacturing.
What are the common uses of Foot?
The Foot is commonly used in height measurement, real estate, construction.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Foot to Millimeter converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/foot-to-millimeter