| fathom | 1 ftm | 2 ftm | 3 ftm | 4 ftm | 5 ftm | 6 ftm | 7 ftm | 8 ftm | 9 ftm | 10 ftm | 11 ftm | 12 ftm | 13 ftm | 14 ftm | 15 ftm | 16 ftm | 17 ftm | 18 ftm | 19 ftm | 20 ftm | 21 ftm | 22 ftm | 23 ftm | 24 ftm | 25 ftm | 26 ftm | 27 ftm | 28 ftm | 29 ftm | 30 ftm | 31 ftm | 32 ftm | 33 ftm | 34 ftm | 35 ftm | 36 ftm | 37 ftm | 38 ftm | 39 ftm | 40 ftm | 41 ftm | 42 ftm | 43 ftm | 44 ftm | 45 ftm | 46 ftm | 47 ftm | 48 ftm | 49 ftm | 50 ftm | 51 ftm | 52 ftm | 53 ftm | 54 ftm | 55 ftm | 56 ftm | 57 ftm | 58 ftm | 59 ftm | 60 ftm | 61 ftm | 62 ftm | 63 ftm | 64 ftm | 65 ftm | 66 ftm | 67 ftm | 68 ftm | 69 ftm | 70 ftm | 71 ftm | 72 ftm | 73 ftm | 74 ftm | 75 ftm | 76 ftm | 77 ftm | 78 ftm | 79 ftm | 80 ftm | 81 ftm | 82 ftm | 83 ftm | 84 ftm | 85 ftm | 86 ftm | 87 ftm | 88 ftm | 89 ftm | 90 ftm | 91 ftm | 92 ftm | 93 ftm | 94 ftm | 95 ftm | 96 ftm | 97 ftm | 98 ftm | 99 ftm | 100 ftm |
| french; charriere | 5,486.4 F | 10,972.8 F | 16,459.2 F | 21,945.6 F | 27 432 F | 32,918.4 F | 38,404.8 F | 43,891.2 F | 49,377.6 F | 54 864 F | 60,350.4 F | 65,836.8 F | 71,323.2 F | 76,809.6 F | 82 296 F | 87,782.4 F | 93,268.8 F | 98,755.2 F | 104,241.6 F | 109 728 F | 115,214.4 F | 120,700.8 F | 126,187.2 F | 131,673.6 F | 137 160 F | 142,646.4 F | 148,132.8 F | 153,619.2 F | 159,105.6 F | 164 592 F | 170,078.4 F | 175,564.8 F | 181,051.2 F | 186,537.6 F | 192 024 F | 197,510.4 F | 202,996.8 F | 208,483.2 F | 213,969.6 F | 219 456 F | 224,942.4 F | 230,428.8 F | 235,915.2 F | 241,401.6 F | 246 888 F | 252,374.4 F | 257,860.8 F | 263,347.2 F | 268,833.6 F | 274 320 F | 279,806.4 F | 285,292.8 F | 290,779.2 F | 296,265.6 F | 301 752 F | 307,238.4 F | 312,724.8 F | 318,211.2 F | 323,697.6 F | 329 184 F | 334,670.4 F | 340,156.8 F | 345,643.2 F | 351,129.6 F | 356 616 F | 362,102.4 F | 367,588.8 F | 373,075.2 F | 378,561.6 F | 384 048 F | 389,534.4 F | 395,020.8 F | 400,507.2 F | 405,993.6 F | 411 480 F | 416,966.4 F | 422,452.8 F | 427,939.2 F | 433,425.6 F | 438 912 F | 444,398.4 F | 449,884.8 F | 455,371.2 F | 460,857.6 F | 466 344 F | 471,830.4 F | 477,316.8 F | 482,803.2 F | 488,289.6 F | 493 776 F | 499,262.4 F | 504,748.8 F | 510,235.2 F | 515,721.6 F | 521 208 F | 526,694.4 F | 532,180.8 F | 537,667.2 F | 543,153.6 F | 548 640 F |
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 = 5486.4 french; charriere | 4 fathoms = 21945.6 french; charriere |
| 1.5 fathoms = 8229.6 french; charriere | 4.5 fathoms = 24688.8 french; charriere |
| 2 fathoms = 10972.8 french; charriere | 5 fathoms = 27432 french; charriere |
| 2.5 fathoms = 13716 french; charriere | 5.5 fathoms = 30175.2 french; charriere |
| 3 fathoms = 16459.2 french; charriere | 6 fathoms = 32918.4 french; charriere |
The French scale or French gauge system is commonly used to measure the size of a catheter. It is most often abbreviated as Fr, but can often be seen abbreviated as Fg, Ga, FR or F. It may also be abbreviated as CH or Ch (for Charrière, its inventor).
| 1 french; charriere = 0.00018226888305628 fathoms | 4 french; charriere = 0.00072907553222514 fathoms |
| 1.5 french; charriere = 0.00027340332458443 fathoms | 4.5 french; charriere = 0.00082020997375328 fathoms |
| 2 french; charriere = 0.00036453776611257 fathoms | 5 french; charriere = 0.00091134441528142 fathoms |
| 2.5 french; charriere = 0.00045567220764071 fathoms | 5.5 french; charriere = 0.0010024788568096 fathoms |
| 3 french; charriere = 0.00054680664916885 fathoms | 6 french; charriere = 0.0010936132983377 fathoms |
| 1 fathoms = 5,486.4 french; charriere |
| 1 french; charriere = 0.0001823 fathoms |