The Fathom remains vital in maritime navigation, measuring water depth and anchor chains. One fathom equals 6 feet. For reference, recreational scuba divers typically explore depths of 10-20 fathoms (60-120 feet), while the Titanic rests at about 1,200 fathoms (7,200 feet) below sea level. The Chain (Gunter's chain) was fundamental in surveying the American frontier. Measuring 66 feet (4 rods), it's the length of a cricket pitch. Ten square chains make an acre. Modern surveyors still reference chains in legal descriptions, and the unit remains visible in rural road layouts across the US.
To convert between Fathom (ftm) and Chain (ch), use the following formulas:
1 Fathom (ftm) = 0.0909090909090909 Chain (ch)
1 Chain (ch) = 11 Fathom (ftm)
1 ftm = 1 * 0.0909090909090909 ch = 0.0909090909090909 ch
5 ftm = 5 * 0.0909090909090909 ch = 0.4545454545454545 ch
10 ftm = 10 * 0.0909090909090909 ch = 0.909090909090909 ch
20 ftm = 20 * 0.0909090909090909 ch = 1.818181818181818 ch
50 ftm = 50 * 0.0909090909090909 ch = 4.545454545454545 ch
100 ftm = 100 * 0.0909090909090909 ch = 9.09090909090909 ch
| Fathom (ftm) | Chain (ch) |
|---|---|
| 1 ftm | 0.0909090909090909 ch |
| 5 ftm | 0.4545454545454545 ch |
| 10 ftm | 0.909090909090909 ch |
| 20 ftm | 1.818181818181818 ch |
| 50 ftm | 4.545454545454545 ch |
| 100 ftm | 9.09090909090909 ch |