Convert Feet to Nautical Miles
1 foot (ft) equals 0.0001645788337 nautical miles (nmi).
1 ft = 0.0001645788337 nmi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk foot to nautical mile converter to paste a column from Excel.
How to Convert Foot to Nautical Mile
- 1 ft = 0.0001645788337 nmi
- 1 nmi = 6076.115486 ft
- Example: convert 15 ft to nmi: 15 ft = 15 × 0.0001645788337 nmi = 0.002468682505 nmi
Reference conditions. ft: The international yard and pound agreement (1959) fixed 1 yard = 0.9144 m exactly, so the inch, foot and mile are exact.
Formula
nmi = ft × 0.0001645788336933
or nmi = ft ÷ 6076.115485564
Derivation from SI units:
- 1 ft = 12 in = 0.3048 m (exact)
- 1 nmi = 1852 m (exact, by international agreement, 1929)
- 1 ft = 0.3048 m ÷ 1852 m per nmi = 0.0001645788336933 nmi
Both units are defined exactly, so the factor is exact. Foot definition: foot; Nautical Mile definition: nautical mile.
Worked examples
- A reading of 6 ft converts to 0.0009874730022 nmi.
6 ft × 0.0001645788337 = 0.0009874730022 nmi - A value of 30 ft is 0.004937365011 nmi.
30 ft × 0.0001645788337 = 0.004937365011 nmi
Foot to Nautical Mile conversion table
| Feet (ft) | Nautical Miles (nmi) |
|---|---|
| 0.5 ft | 0.00008228941685 nmi |
| 1 ft | 0.0001645788337 nmi |
| 2 ft | 0.0003291576674 nmi |
| 3 ft | 0.0004937365011 nmi |
| 4 ft | 0.0006583153348 nmi |
| 5 ft | 0.0008228941685 nmi |
| 5.5 ft | 0.0009051835853 nmi |
| 6 ft | 0.0009874730022 nmi |
| 8 ft | 0.00131663067 nmi |
| 10 ft | 0.001645788337 nmi |
| 12 ft | 0.001974946004 nmi |
| 15 ft | 0.002468682505 nmi |
| 20 ft | 0.003291576674 nmi |
| 25 ft | 0.004114470842 nmi |
| 30 ft | 0.004937365011 nmi |
| 50 ft | 0.008228941685 nmi |
| 100 ft | 0.01645788337 nmi |
| 500 ft | 0.08228941685 nmi |
| 1000 ft | 0.1645788337 nmi |
| 5280 ft | 0.8689762419 nmi |
| 10000 ft | 1.645788337 nmi |
| 35000 ft | 5.760259179 nmi |
Where it's used
Feet are used for building dimensions and ceiling heights in the US, while nautical miles appear in marine and air navigation. Both measure length and distance, so the conversion is a fixed factor.
Foot to other length units
| Conversion | 1 ft equals |
|---|---|
| foot to meter | 0.3048 m |
| foot to kilometer | 0.0003048 km |
| foot to centimeter | 30.48 cm |
| foot to millimeter | 304.8 mm |
| foot to micrometer | 304800 µm |
| foot to nanometer | 304800000 nm |
| foot to angstrom | 3048000000 Å |
| foot to mile | 0.0001893939394 mi |
| foot to yard | 0.3333333333 yd |
| foot to inch | 12 in |
| foot to mil | 12000 mil |
| foot to nautical mile | 0.0001645788337 nmi |
Frequently asked questions
How many nautical miles are in 1 foot?
1 ft = 0.0001645788337 nmi.
How do I convert feet to nautical miles?
Multiply the value in ft by 0.0001645788337, or divide it by 6076.115486. For example, 15 ft × 0.0001645788337 = 0.002468682505 nmi.
Is the ft to nmi conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "foot (ft)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "nautical mile".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Feet to Nautical Miles. Retrieved October 17, 2026, from https://scientificconverters.com/length/feet-to-nautical-miles/
IEEE
Scientific Converters, "Convert Feet to Nautical Miles," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/length/feet-to-nautical-miles/