The US survey foot is 1200/3937 meters and is retained for legacy land records.
US survey feet to Inches Converter — ftUS to in
Convert US survey foot (ftUS) to Inch (in) using the exact conversion factor (1 us survey foot = 12.000024 inch). See the formula, worked examples, conversion table, history, and common uses.
US survey feet to Inches converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
An inch is exactly 0.0254 meters.
Result = input x 0.3048006096 / 0.0254.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting US survey feet to Inches
US survey foot and Inch both measure length. Specifically: The US survey foot is 1200/3937 meters and is retained for legacy land records, and an inch is exactly 0.0254 meters.
Formula
inches = us survey feet × 12.000024
This factor comes from each unit's defined relationship to the category's base unit: 1 us survey foot equals 0.304800609601 base units, and 1 inch equals 0.0254 base units, so dividing one by the other gives the direct us survey foot-to-inch factor of 12.000024.
Simple example
1 ftUS × 12.000024 = 12.000024 in
1 us survey foot = 12.000024 inches.
Real-world example
10 ftUS × 12.000024 = 120.00024 in
10 us survey feet = 120.00024 inches.
Conversion table
| US survey foot (ftUS) | Inch (in) |
|---|---|
| 1 ftUS | 12.000024 in |
| 5 ftUS | 60.00012 in |
| 10 ftUS | 120.00024 in |
| 21.0975 ftUS | 253.1705063 in |
| 42.195 ftUS | 506.3410127 in |
| 100 ftUS | 1,200.0024 in |
Reverse conversion: Inch to US survey foot
12.000024 in × 0.08333316667 = 1 ftUS
12.000024 inches = 1 us survey feet.
us survey feet = inches × 0.0833331666667
For a page dedicated to this direction, see Inch to US survey foot.
Understanding the US survey foot (ftUS)
The US survey foot is 1200/3937 meters and is retained for legacy land records.
Understanding the Inch
Inch (in) measures distance. The international inch is defined as exactly 25.4 millimeters. It is classified as a US/imperial customary unit.
Where it's used: United States and United Kingdom (small measurements, screen sizes, hardware)
Uses of the Inch today
- Screen and display size measurement worldwide (even in metric countries)
- US/UK small-object and body measurement
- Hardware, tools, and pipe fittings (US)
History of the Inch
The inch traces to medieval England, traditionally defined as the length of three barleycorns, later standardized as 1/12 of a foot. The international inch (exactly 25.4 mm) was fixed by the same 1959 agreement that standardized the foot and yard.
Historical origin. Inch was not the invention of a single named person; it developed through the process described above.
Inch — sources
- NIST — International yard and pound (1959) — Fixes the modern inch at exactly 25.4 millimeters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many inches are in 1 us survey foot?
1 us survey foot equals 12.000024 inches, using the exact defined conversion factor rather than an estimate.
How do I convert us survey foot to inch?
Multiply the us survey foot value by 12.000024. The converter above does this instantly to whatever precision you set.
How do I convert inch back to us survey foot?
Use the reverse factor: 1 inch equals 0.0833331667 us survey feet. You can also use the swap control in the converter above to flip the direction instantly.
What is a us survey foot?
US survey foot (ftUS) is a unit of length.
What is a inch?
Inch (in) measures distance. The international inch is defined as exactly 25.4 millimeters. It is classified as a US/imperial customary unit.
Is the us survey foot to inch conversion exact?
Yes. The international inch is defined as exactly 25.4 millimeters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.