| inch | 1 in | 2 in | 3 in | 4 in | 5 in | 6 in | 7 in | 8 in | 9 in | 10 in | 11 in | 12 in | 13 in | 14 in | 15 in | 16 in | 17 in | 18 in | 19 in | 20 in | 21 in | 22 in | 23 in | 24 in | 25 in | 26 in | 27 in | 28 in | 29 in | 30 in | 31 in | 32 in | 33 in | 34 in | 35 in | 36 in | 37 in | 38 in | 39 in | 40 in | 41 in | 42 in | 43 in | 44 in | 45 in | 46 in | 47 in | 48 in | 49 in | 50 in | 51 in | 52 in | 53 in | 54 in | 55 in | 56 in | 57 in | 58 in | 59 in | 60 in | 61 in | 62 in | 63 in | 64 in | 65 in | 66 in | 67 in | 68 in | 69 in | 70 in | 71 in | 72 in | 73 in | 74 in | 75 in | 76 in | 77 in | 78 in | 79 in | 80 in | 81 in | 82 in | 83 in | 84 in | 85 in | 86 in | 87 in | 88 in | 89 in | 90 in | 91 in | 92 in | 93 in | 94 in | 95 in | 96 in | 97 in | 98 in | 99 in | 100 in |
| fathom | 0.0138889 ftm | 0.0277778 ftm | 0.0416667 ftm | 0.0555556 ftm | 0.0694444 ftm | 0.0833333 ftm | 0.0972222 ftm | 0.1111111 ftm | 0.125 ftm | 0.1388889 ftm | 0.1527778 ftm | 0.1666667 ftm | 0.1805556 ftm | 0.1944444 ftm | 0.2083333 ftm | 0.2222222 ftm | 0.2361111 ftm | 0.25 ftm | 0.2638889 ftm | 0.2777778 ftm | 0.2916667 ftm | 0.3055556 ftm | 0.3194444 ftm | 0.3333333 ftm | 0.3472222 ftm | 0.3611111 ftm | 0.375 ftm | 0.3888889 ftm | 0.4027778 ftm | 0.4166667 ftm | 0.4305556 ftm | 0.4444444 ftm | 0.4583333 ftm | 0.4722222 ftm | 0.4861111 ftm | 0.5 ftm | 0.5138889 ftm | 0.5277778 ftm | 0.5416667 ftm | 0.5555556 ftm | 0.5694444 ftm | 0.5833333 ftm | 0.5972222 ftm | 0.6111111 ftm | 0.625 ftm | 0.6388889 ftm | 0.6527778 ftm | 0.6666667 ftm | 0.6805556 ftm | 0.6944444 ftm | 0.7083333 ftm | 0.7222222 ftm | 0.7361111 ftm | 0.75 ftm | 0.7638889 ftm | 0.7777778 ftm | 0.7916667 ftm | 0.8055556 ftm | 0.8194444 ftm | 0.8333333 ftm | 0.8472222 ftm | 0.8611111 ftm | 0.875 ftm | 0.8888889 ftm | 0.9027778 ftm | 0.9166667 ftm | 0.9305556 ftm | 0.9444444 ftm | 0.9583333 ftm | 0.9722222 ftm | 0.9861111 ftm | 1 ftm | 1.0138889 ftm | 1.0277778 ftm | 1.0416667 ftm | 1.0555556 ftm | 1.0694444 ftm | 1.0833333 ftm | 1.0972222 ftm | 1.1111111 ftm | 1.125 ftm | 1.1388889 ftm | 1.1527778 ftm | 1.1666667 ftm | 1.1805556 ftm | 1.1944444 ftm | 1.2083333 ftm | 1.2222222 ftm | 1.2361111 ftm | 1.25 ftm | 1.2638889 ftm | 1.2777778 ftm | 1.2916667 ftm | 1.3055556 ftm | 1.3194444 ftm | 1.3333333 ftm | 1.3472222 ftm | 1.3611111 ftm | 1.375 ftm | 1.3888889 ftm |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
| 1 inches = 0.013888888888889 fathoms | 4 inches = 0.055555555555556 fathoms |
| 1.5 inches = 0.020833333333333 fathoms | 4.5 inches = 0.0625 fathoms |
| 2 inches = 0.027777777777778 fathoms | 5 inches = 0.069444444444444 fathoms |
| 2.5 inches = 0.034722222222222 fathoms | 5.5 inches = 0.076388888888889 fathoms |
| 3 inches = 0.041666666666667 fathoms | 6 inches = 0.083333333333333 fathoms |
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water.
There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet.
| 1 fathoms = 72 inches | 4 fathoms = 288 inches |
| 1.5 fathoms = 108 inches | 4.5 fathoms = 324 inches |
| 2 fathoms = 144 inches | 5 fathoms = 360 inches |
| 2.5 fathoms = 180 inches | 5.5 fathoms = 396 inches |
| 3 fathoms = 216 inches | 6 fathoms = 432 inches |
| 1 inches = 0.0138889 fathoms |
| 1 fathoms = 72 inches |