Feet to US Survey Feet Converter
Enter the length in feet below to convert it to us survey feet.
Convert Feet to US Survey Feet
Enter a value in feet (ft) to convert to us survey feet (ft (US)).
Feet to US Survey Feet Conversion Chart (1–40 Continuous)
Continuous 1 to 40 feet lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Feet (ft) | Decimal (ft (US)) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 ft★ Common | 0.999998 ft (US) | 1 ft (US) | 1 ft (US) |
2 ft★ Common | 1.999996 ft (US) | 2 ft (US) | 2 ft (US) |
3 ft★ Common | 2.999994 ft (US) | 3 ft (US) | 3 ft (US) |
4 ft | 3.999992 ft (US) | 4 ft (US) | 4 ft (US) |
5 ft★ Common | 4.99999 ft (US) | 5 ft (US) | 5 ft (US) |
6 ft★ Common | 5.999988 ft (US) | 6 ft (US) | 6 ft (US) |
7 ft | 6.999986 ft (US) | 7 ft (US) | 7 ft (US) |
8 ft★ Common | 7.999984 ft (US) | 8 ft (US) | 8 ft (US) |
9 ft | 8.999982 ft (US) | 9 ft (US) | 9 ft (US) |
10 ft★ Common | 9.99998 ft (US) | 10 ft (US) | 10 ft (US) |
11 ft | 10.999978 ft (US) | 11 ft (US) | 11 ft (US) |
12 ft★ Common | 11.999976 ft (US) | 12 ft (US) | 12 ft (US) |
How to Convert Feet to US Survey Feet
To convert feet to us survey feet, multiply the length by the following conversion ratio: 0.999998 us survey feet/foot.
Since one foot is equal to 0.999998 us survey feet, you can use this simple formula to convert:
The length in us survey feet is equal to the length in feet multiplied by 0.999998.
For example, here's how to convert 5 feet to us survey feet using the formula above.
How Many US Survey Feet Are in a Foot?
There are 0.999998 us survey feet in a foot, which is why we use this value in the formula above.
Our foot fraction and decimal calculator can convert feet and us survey feet, and it automatically converts the results to US customary, imperial, and SI metric values.
Feet and us survey feet are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Feet 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 60 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 feet (ft) into fractional inches:
- Find the decimal inches result: Convert 5 ft to inches to get 60 in.
- Separate the whole inches from the decimal part: Keep the whole number 60 aside, leaving the decimal remainder 0.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0 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 Foot?
A foot is a US customary and imperial unit of length equal to 12 inches or 1/3 of a yard. Under the 1959 International Yard and Pound Agreement, one foot is legally defined as exactly 0.3048 meters (30.48 centimeters). [1]
Feet are widely used in the United States, Canada, and the United Kingdom for human height, building construction, real estate floor plans, and aviation altitude. Feet can be abbreviated as ft; for example, 1 foot can be written as 1 ft.
Feet can also be denoted using the ′ symbol, known as a prime (or a single quote ' for convenience). For example, 5 feet 10 inches is frequently written as 5′ 10″ or 5' 10".
Feet are measured using 12-inch rulers, carpenter's folding rules, 25-foot steel tape measures, and laser distance meters across residential framing, architecture, and surveying.
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 feet (ft) and us survey feet (ft (US)), keep full floating-point precision (1' = 0.999998 ft (US); 1 ft (US) = 1.000002 ft) during intermediate calculations and round only the final us survey foot figure to match your instrument tolerance.
More Foot & US Survey Foot Conversions
Need to calculate in the opposite direction? Use our us survey feet to feet calculator to switch your starting unit immediately. You can also explore related tools such as converting us survey feet to feet, converting meters to us survey feet, or converting feet to meters.
Convert from Feet
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Feet (ft) to US Survey Feet (ft (US))
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Foot (ft) & US Survey Foot (ft (US))
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (ft to ft (US))