Millimeters to US Survey Feet Converter
Enter the length in millimeters below to convert it to us survey feet.
Convert Millimeters to US Survey Feet
Enter a value in millimeters (mm) to convert to us survey feet (ft (US)).
Millimeters to US Survey Feet Conversion Chart (1–40 Continuous)
Continuous 1 to 40 millimeters lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Millimeters (mm) | Decimal (ft (US)) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 mm★ Common | 0.003281 ft (US) | 0 ft (US) | 0 ft (US) |
2 mm★ Common | 0.006562 ft (US) | 0 ft (US) | 0 ft (US) |
3 mm★ Common | 0.009843 ft (US) | 1/64 ft (US) | 0 ft (US) |
4 mm | 0.013123 ft (US) | 1/64 ft (US) | 0 ft (US) |
5 mm★ Common | 0.016404 ft (US) | 1/64 ft (US) | 0 ft (US) |
6 mm★ Common | 0.019685 ft (US) | 1/64 ft (US) | 0 ft (US) |
7 mm | 0.022966 ft (US) | 1/64 ft (US) | 0 ft (US) |
8 mm★ Common | 0.026247 ft (US) | 1/32 ft (US) | 0 ft (US) |
9 mm | 0.029528 ft (US) | 1/32 ft (US) | 0 ft (US) |
10 mm★ Common | 0.032808 ft (US) | 1/32 ft (US) | 1/16 ft (US) |
11 mm | 0.036089 ft (US) | 1/32 ft (US) | 1/16 ft (US) |
12 mm★ Common | 0.03937 ft (US) | 3/64 ft (US) | 1/16 ft (US) |
How to Convert Millimeters to US Survey Feet
To convert millimeters to us survey feet, multiply the length by the following conversion ratio: 0.0032808 us survey feet/millimeter.
Since one millimeter is equal to 0.0032808 us survey feet, you can use this simple formula to convert:
The length in us survey feet is equal to the length in millimeters multiplied by 0.0032808.
For example, here's how to convert 5 millimeters to us survey feet using the formula above.
How Many US Survey Feet Are in a Millimeter?
There are 0.0032808 us survey feet in a millimeter, which is why we use this value in the formula above.
Our millimeter fraction and decimal calculator can convert millimeters and us survey feet, and it automatically converts the results to US customary, imperial, and SI metric values.
Millimeters and us survey feet are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Millimeters to Fractional Inches (1/16″, 1/32″ & 1/64″)
Plain-language method for turning decimal inches into a standard tape-measure or machinist ruler fraction
Calculators give you a decimal number (such as 0.19685 in), but tape measures and woodworking rulers are marked in binary fractions of an inch—most commonly 1/16″ on carpenter tapes, 1/32″ on fine woodworking rules, and 1/64″ on machinist scales.
Here is the step-by-step worked example for converting 5 millimeters (mm) into fractional inches:
- Find the decimal inches result: Convert 5 mm to inches to get 0.19685 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 aside, leaving the decimal remainder 0.19685.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0.19685 by 16, 32, or 64, then round to the nearest whole number (values ending in .5 round up).
- Reduce the fraction to lowest terms: If the rounded top number (numerator) is even, divide both top and bottom by 2 (or their Greatest Common Divisor) until the top number is odd, then combine with your whole inches.
What Is a Millimeter?
A millimeter is a metric unit of length equal to one-thousandth (1/1,000) of a meter or one-tenth (1/10) of a centimeter. By international definition, there are exactly 25.4 millimeters in one inch. [1]
The millimeter, or millimetre, is a standard SI metric unit of length. Millimeters can be abbreviated as mm; for example, 1 millimeter can be written as 1 mm.
In the metric system, "milli" is the prefix for thousandths, or 10⁻³. Millimeters are the default unit on mechanical engineering drawings and architectural blueprints worldwide.
Millimeters are commonly measured using metric steel rules, digital vernier calipers, depth gauges, and micrometers in CNC machining, 3D printing, automotive fasteners, and precision manufacturing.
What Is a US Survey Foot?
A us survey foot is a unit of length equal to 0.3048006 meters (m), the base unit for length. Geodetic US Survey foot defined as 1200/3937 meters (approx. 0.30480061 m). [2]
The us survey foot is classified as a US customary unit of length. US Survey Feet can be abbreviated as ft (US); for example, 1 us survey foot can be written as 1 ft (US).
When working with us survey feet (ft (US)) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, us survey feet (ft (US)) are widely used across standard length applications within US customary workflows, engineering documentation, and technical data sheets.
When converting length between millimeters (mm) and us survey feet (ft (US)), keep full floating-point precision (1 mm = 0.0032808 ft (US); 1 ft (US) = 304.8006096 mm) during intermediate calculations and round only the final us survey foot figure to match your instrument tolerance.
More Millimeter & US Survey Foot Conversions
Need to calculate in the opposite direction? Use our us survey feet to millimeters calculator to switch your starting unit immediately. You can also explore related tools such as converting us survey feet to millimeters, converting meters to us survey feet, or converting millimeters to inches.
Convert from Millimeters
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Millimeters (mm) to US Survey Feet (ft (US))
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Millimeter (mm) & US Survey Foot (ft (US))
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mm to ft (US))