The US survey foot is 1200/3937 meters and is retained for legacy land records.
US survey feet to Micrometers Converter — ftUS to um
Convert US survey foot (ftUS) to Micrometer (um) using the exact conversion factor (1 us survey foot = 304,800.6096 micrometer). See the formula, worked examples, and conversion table.
US survey feet to Micrometers 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.
Micrometer is 0.000001 meter units.
Result = input x 0.3048006096 / 1e-6.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting US survey feet to Micrometers
US survey foot and Micrometer both measure length. Specifically: The US survey foot is 1200/3937 meters and is retained for legacy land records, and micrometer is 0.000001 meter units.
Formula
micrometers = us survey feet × 304800.609601
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 micrometer equals 0.000001 base units, so dividing one by the other gives the direct us survey foot-to-micrometer factor of 304800.609601.
Simple example
1 ftUS × 304800.6096 = 304,800.6096 um
1 us survey foot = 304,800.6096 micrometers.
Real-world example
10 ftUS × 304800.6096 = 3,048,006.096 um
10 us survey feet = 3,048,006.096 micrometers.
Conversion table
| US survey foot (ftUS) | Micrometer (um) |
|---|---|
| 1 ftUS | 304,800.6096 um |
| 5 ftUS | 1,524,003.048 um |
| 10 ftUS | 3,048,006.096 um |
| 21.0975 ftUS | 6,430,530.861 um |
| 42.195 ftUS | 12,861,061.72 um |
| 100 ftUS | 30,480,060.96 um |
Reverse conversion: Micrometer to US survey foot
1 um × 0.000003280833333 = 0.0000032808 ftUS
1 micrometer = 0.0000032808 us survey feet.
us survey feet = micrometers × 0.00000328083333333
For a page dedicated to this direction, see Micrometer 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 Micrometer (um)
Micrometer is 0.000001 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrometers are in 1 us survey foot?
1 us survey foot equals 304,800.6096 micrometers, using the exact defined conversion factor rather than an estimate.
How do I convert us survey foot to micrometer?
Multiply the us survey foot value by 304800.6096. The converter above does this instantly to whatever precision you set.
How do I convert micrometer back to us survey foot?
Use the reverse factor: 1 micrometer equals 0.0000032808 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 micrometer?
Micrometer (um) is a unit of length.
Is the us survey foot to micrometer conversion exact?
Yes. Both us survey foot and micrometer are defined by fixed standards rather than physical artifacts, so the factor of 304800.6096 used above is exact to as many digits as you choose to display.