Feet to Nautical Mile Converter
Length · unit-converter
Convert Feet to Nautical Mile with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use SI-based definitions (international yard, nautical mile, etc.).
Calculator
From: Feet (ft)
To: Nautical Mile (nmi)
About Feet
Feet are imperial and US customary units of length; each is exactly 0.3048 meters. Twelve inches make one feet; feet are common in construction and human-scale dimensions.
About Nautical Mile
The nautical mile is a non-SI unit of length used in air and sea navigation. It is defined as exactly 1,852 meters (about 1.15078 statute miles).
How to convert feet to nautical miles
1 feet is equal to 0.00016457883369 nautical mile:
1 ft = (0.3048 m ÷ 1852 m) nmi = 0.00016457883369 nmi
Each feet is defined as 0.3048 m and each nautical mile as 1852 m, so one ft equals 0.3048 ÷ 1852 nmi = 0.00016457883369 nmi.
Let d(ft) be the numeric value of the same length measured in Feet (ft), and d(nmi) the value in Nautical Mile (nmi). Then:
d(nmi) = d(ft) × (0.3048 / 1852)
Equivalently, divide by how many ft fit into one nmi (meters per nmi divided by meters per ft):
d(nmi) = d(ft) ÷ 6076.11548556430444
Or: nautical mile = feet ÷ 6076.11548556430444
Examples
Example #1: Convert 20 ft to nautical mile
20 ft = 20 ft × (0.3048/1852) nmi = 0.0032915767 nmi
20 ft = 20 ft ÷ 6076.11548556430444 = 0.0032915767 nmi
Example #2: Convert 50 ft to nautical mile
50 ft = 50 ft × (0.3048/1852) nmi = 0.0082289417 nmi
50 ft = 50 ft ÷ 6076.11548556430444 = 0.0082289417 nmi
Summary
To convert Feet to Nautical Mile, multiply the value in ft by the ratio of meters per ft divided by meters per nmi. Equivalently: value_nmi = value_ft × (0.3048 / 1852). Numerically, 1 ft equals 0.00016457883369330455 nmi.
Relationship context
You are converting between US customary / imperial (Feet) and nautical (navigation) (Nautical Miles). Metric units are decimal; imperial units use inches, feet, yards, and miles tied to the international yard definition. Nautical miles are defined in meters (1 nmi = 1,852 m). This tool uses SI-based factors so results stay consistent with modern standards.
Conversion tables
| Feet (ft) | Nautical Mile (nmi) |
|---|---|
| 0.1 | 0.0000164579 |
| 1 | 0.0001645788 |
| 2 | 0.0003291577 |
| 3 | 0.0004937365 |
| 4 | 0.0006583153 |
| 5 | 0.0008228942 |
| 6 | 0.000987473 |
| 7 | 0.0011520518 |
| 8 | 0.0013166307 |
| 9 | 0.0014812095 |
| Feet (ft) | Nautical Mile (nmi) |
|---|---|
| 10 | 0.0016457883 |
| 20 | 0.0032915767 |
| 30 | 0.004937365 |
| 40 | 0.0065831533 |
| 50 | 0.0082289417 |
| 60 | 0.00987473 |
| 70 | 0.0115205184 |
| 80 | 0.0131663067 |
| 90 | 0.014812095 |
| 100 | 0.0164578834 |