US Survey Feet to Millimeters
Convert us survey feet to millimeters instantly. 1 ft-us = 304.8006096012 mm. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert us survey feet to millimeters
To convert us survey feet to millimeters, multiply by 304.8006096012. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
mm = ft-us × 304.8006096012
US Survey Feet to Millimeters conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| US Survey Feet | Millimeters |
|---|---|
| 1 ft-us | 304.80061 mm |
| 2 ft-us | 609.601219 mm |
| 3 ft-us | 914.401829 mm |
| 5 ft-us | 1,524 mm |
| 10 ft-us | 3,048.01 mm |
| 20 ft-us | 6,096.01 mm |
| 25 ft-us | 7,620.02 mm |
| 50 ft-us | 15,240.03 mm |
| 100 ft-us | 30,480.06 mm |
| 500 ft-us | 152,400.3 mm |
| 1,000 ft-us | 304,800.61 mm |
What is a us survey feet?
The pre-2023 US surveying foot, longer than the international foot by 2 ppm.
What is a millimeter?
A thousandth of a metre. The default fine unit on metric engineering drawings.
The formula
mm = ft-us × 304.8006096012
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the US Survey Feet to Millimeters
- Type the number of us survey feet you want to convert.
- Read the result in millimeters straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked millimeters to us survey feet page.
US Survey Feet to Millimeters — frequently asked questions
How many millimeters are in a us survey feet?
One us survey feet equals 304.8006096012 mm. mm = ft-us × 304.8006096012
What is the formula to convert us survey feet to millimeters?
The formula is mm = ft-us × 304.8006096012. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert millimeters back to us survey feet?
Divide instead of multiplying: one millimeter is 0.0032808333 ft-us. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this us survey feet to millimeters free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the us survey feet to millimeters.
- us survey feet to millimeters
- how many millimeters in a us survey feet
- ft-us2mm
- us survey feet in millimeters
- us survey feet to millimeters converter
- convert us survey feet to millimeters
- us survey feet to millimetres
- us survey feet to mm
About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error