To convert fathoms to nautical miles, multiply the value by 0.000987473. To go the other way, multiply nautical miles by 1,012.69 to get fathoms.
| Fathoms (ftm) | Nautical Miles (NM) |
|---|---|
| 1 ftm | 0.000987473 NM |
| 5 ftm | 0.00493737 NM |
| 10 ftm | 0.00987473 NM |
| 25 ftm | 0.0246868 NM |
| 50 ftm | 0.0493737 NM |
| 100 ftm | 0.0987473 NM |
| 250 ftm | 0.246868 NM |
| 500 ftm | 0.493737 NM |
| 1,000 ftm | 0.987473 NM |
| 2,500 ftm | 2.46868 NM |
| 5,000 ftm | 4.93737 NM |
| 10,000 ftm | 9.87473 NM |
| 100,000 ftm | 98.7473 NM |
| 1,000,000 ftm | 987.473 NM |
Fathom (ftm). A fathom is 6 feet (1.8288 m), traditionally used to measure the depth of water.
Nautical mile (NM). A nautical mile is exactly 1,852 meters, based on one minute of latitude, and is used in shipping and aviation.
There are 0.000987473 nautical miles in one fathom.
Multiply the number of fathoms by 0.000987473. For example, 10 fathoms equal 0.00987473 nautical miles.
One nautical mile equals 1,012.69 fathoms.
0.987473 nautical miles. Other common values: 100 fathoms = 0.0987473 nautical miles and 10,000 fathoms = 9.87473 nautical miles.