To convert fathoms to US survey feet, multiply the value by 5.99999. To go the other way, multiply US survey feet by 0.166667 to get fathoms.
| Fathoms (ftm) | US Survey Feet (ftUS) |
|---|---|
| 1 ftm | 5.99999 ftUS |
| 2 ftm | 12 ftUS |
| 3 ftm | 18 ftUS |
| 4 ftm | 24 ftUS |
| 5 ftm | 29.9999 ftUS |
| 6 ftm | 35.9999 ftUS |
| 7 ftm | 41.9999 ftUS |
| 8 ftm | 47.9999 ftUS |
| 9 ftm | 53.9999 ftUS |
| 10 ftm | 59.9999 ftUS |
| 12 ftm | 71.9999 ftUS |
| 14 ftm | 83.9998 ftUS |
| 15 ftm | 89.9998 ftUS |
| 20 ftm | 120 ftUS |
| 21 ftm | 126 ftUS |
| 24 ftm | 144 ftUS |
| 25 ftm | 150 ftUS |
| 30 ftm | 180 ftUS |
| 40 ftm | 240 ftUS |
| 50 ftm | 299.999 ftUS |
| 60 ftm | 359.999 ftUS |
| 75 ftm | 449.999 ftUS |
| 80 ftm | 479.999 ftUS |
| 100 ftm | 599.999 ftUS |
| 200 ftm | 1,200 ftUS |
| 250 ftm | 1,500 ftUS |
| 300 ftm | 1,800 ftUS |
| 400 ftm | 2,400 ftUS |
| 500 ftm | 2,999.99 ftUS |
| 750 ftm | 4,499.99 ftUS |
| 1,000 ftm | 5,999.99 ftUS |
Fathom (ftm). A fathom is 6 feet (1.8288 m), traditionally used to measure the depth of water.
US survey foot (ftUS). The US survey foot is about 0.3048006 m, very slightly longer than the international foot, and was used in US land surveys.
There are 5.99999 US survey feet in one fathom.
Multiply the number of fathoms by 5.99999. For example, 10 fathoms equal 59.9999 US survey feet.
One US survey foot equals 0.166667 fathoms.
71.9999 US survey feet. Other common values: 5 fathoms = 29.9999 US survey feet and 100 fathoms = 599.999 US survey feet.