french; charriere | 1 F | 2 F | 3 F | 4 F | 5 F | 6 F | 7 F | 8 F | 9 F | 10 F | 11 F | 12 F | 13 F | 14 F | 15 F | 16 F | 17 F | 18 F | 19 F | 20 F | 21 F | 22 F | 23 F | 24 F | 25 F | 26 F | 27 F | 28 F | 29 F | 30 F | 31 F | 32 F | 33 F | 34 F | 35 F | 36 F | 37 F | 38 F | 39 F | 40 F | 41 F | 42 F | 43 F | 44 F | 45 F | 46 F | 47 F | 48 F | 49 F | 50 F | 51 F | 52 F | 53 F | 54 F | 55 F | 56 F | 57 F | 58 F | 59 F | 60 F | 61 F | 62 F | 63 F | 64 F | 65 F | 66 F | 67 F | 68 F | 69 F | 70 F | 71 F | 72 F | 73 F | 74 F | 75 F | 76 F | 77 F | 78 F | 79 F | 80 F | 81 F | 82 F | 83 F | 84 F | 85 F | 86 F | 87 F | 88 F | 89 F | 90 F | 91 F | 92 F | 93 F | 94 F | 95 F | 96 F | 97 F | 98 F | 99 F | 100 F |
mil | 13.1233596 mil | 26.2467192 mil | 39.3700787 mil | 52.4934383 mil | 65.6167979 mil | 78.7401575 mil | 91.8635171 mil | 104.9868766 mil | 118.1102362 mil | 131.2335958 mil | 144.3569554 mil | 157.4803150 mil | 170.6036745 mil | 183.7270341 mil | 196.8503937 mil | 209.9737533 mil | 223.0971129 mil | 236.2204724 mil | 249.3438320 mil | 262.4671916 mil | 275.5905512 mil | 288.7139108 mil | 301.8372703 mil | 314.9606299 mil | 328.0839895 mil | 341.2073491 mil | 354.3307087 mil | 367.4540682 mil | 380.5774278 mil | 393.7007874 mil | 406.8241470 mil | 419.9475066 mil | 433.0708661 mil | 446.1942257 mil | 459.3175853 mil | 472.4409449 mil | 485.5643045 mil | 498.6876640 mil | 511.8110236 mil | 524.9343832 mil | 538.0577428 mil | 551.1811024 mil | 564.3044619 mil | 577.4278215 mil | 590.5511811 mil | 603.6745407 mil | 616.7979003 mil | 629.9212598 mil | 643.0446194 mil | 656.1679790 mil | 669.2913386 mil | 682.4146982 mil | 695.5380577 mil | 708.6614173 mil | 721.7847769 mil | 734.9081365 mil | 748.0314961 mil | 761.1548556 mil | 774.2782152 mil | 787.4015748 mil | 800.5249344 mil | 813.6482940 mil | 826.7716535 mil | 839.8950131 mil | 853.0183727 mil | 866.1417323 mil | 879.2650919 mil | 892.3884514 mil | 905.5118110 mil | 918.6351706 mil | 931.7585302 mil | 944.8818898 mil | 958.0052493 mil | 971.1286089 mil | 984.2519685 mil | 997.3753281 mil | 1,010.4986877 mil | 1,023.6220472 mil | 1,036.7454068 mil | 1,049.8687664 mil | 1,062.9921260 mil | 1,076.1154856 mil | 1,089.2388451 mil | 1,102.3622047 mil | 1,115.4855643 mil | 1,128.6089239 mil | 1,141.7322835 mil | 1,154.8556430 mil | 1,167.9790026 mil | 1,181.1023622 mil | 1,194.2257218 mil | 1,207.3490814 mil | 1,220.4724409 mil | 1,233.5958005 mil | 1,246.7191601 mil | 1,259.8425197 mil | 1,272.9658793 mil | 1,286.0892388 mil | 1,299.2125984 mil | 1,312.3359580 mil |
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).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
french; charriere | F | ≡ 1⁄3 mm | = 0.3×10−3 m | Other (Length) |
french; charriere | mils | french; charriere | mils |
---|---|---|---|
1 | = 13.123359580052 | 4 | = 52.49343832021 |
1.5 | = 19.685039370079 | 4.5 | = 59.055118110236 |
2 | = 26.246719160105 | 5 | = 65.616797900262 |
2.5 | = 32.808398950131 | 5.5 | = 72.178477690289 |
3 | = 39.370078740157 | 6 | = 78.740157480315 |
A thousandth of an inch is a derived unit of length in an inch-based system of units. Equal to 0.001 inches, it is normally referred to as a thou /ˈθaʊ/, a thousandth, or (particularly in the United States) a mil.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
mil | mil | ≡ 1×10−3 in | ≡ 2.54×10−5 m | Imperial/US |
mils | french; charriere | mils | french; charriere |
---|---|---|---|
1 | = 0.0762 | 4 | = 0.3048 |
1.5 | = 0.1143 | 4.5 | = 0.3429 |
2 | = 0.1524 | 5 | = 0.381 |
2.5 | = 0.1905 | 5.5 | = 0.4191 |
3 | = 0.2286 | 6 | = 0.4572 |
french; charriere | mils |
---|---|
1 | = 13.1233596 |
0.0762 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |