| 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 |
| finger | 0.0149981 finger (US) | 0.0299963 finger (US) | 0.0449944 finger (US) | 0.0599925 finger (US) | 0.0749906 finger (US) | 0.0899888 finger (US) | 0.1049869 finger (US) | 0.1199850 finger (US) | 0.1349831 finger (US) | 0.1499813 finger (US) | 0.1649794 finger (US) | 0.1799775 finger (US) | 0.1949756 finger (US) | 0.2099738 finger (US) | 0.2249719 finger (US) | 0.2399700 finger (US) | 0.2549681 finger (US) | 0.2699663 finger (US) | 0.2849644 finger (US) | 0.2999625 finger (US) | 0.3149606 finger (US) | 0.3299588 finger (US) | 0.3449569 finger (US) | 0.3599550 finger (US) | 0.3749531 finger (US) | 0.3899513 finger (US) | 0.4049494 finger (US) | 0.4199475 finger (US) | 0.4349456 finger (US) | 0.4499438 finger (US) | 0.4649419 finger (US) | 0.4799400 finger (US) | 0.4949381 finger (US) | 0.5099363 finger (US) | 0.5249344 finger (US) | 0.5399325 finger (US) | 0.5549306 finger (US) | 0.5699288 finger (US) | 0.5849269 finger (US) | 0.5999250 finger (US) | 0.6149231 finger (US) | 0.6299213 finger (US) | 0.6449194 finger (US) | 0.6599175 finger (US) | 0.6749156 finger (US) | 0.6899138 finger (US) | 0.7049119 finger (US) | 0.7199100 finger (US) | 0.7349081 finger (US) | 0.7499063 finger (US) | 0.7649044 finger (US) | 0.7799025 finger (US) | 0.7949006 finger (US) | 0.8098988 finger (US) | 0.8248969 finger (US) | 0.8398950 finger (US) | 0.8548931 finger (US) | 0.8698913 finger (US) | 0.8848894 finger (US) | 0.8998875 finger (US) | 0.9148856 finger (US) | 0.9298838 finger (US) | 0.9448819 finger (US) | 0.9598800 finger (US) | 0.9748781 finger (US) | 0.9898763 finger (US) | 1.0048744 finger (US) | 1.0198725 finger (US) | 1.0348706 finger (US) | 1.0498688 finger (US) | 1.0648669 finger (US) | 1.0798650 finger (US) | 1.0948631 finger (US) | 1.1098613 finger (US) | 1.1248594 finger (US) | 1.1398575 finger (US) | 1.1548556 finger (US) | 1.1698538 finger (US) | 1.1848519 finger (US) | 1.1998500 finger (US) | 1.2148481 finger (US) | 1.2298463 finger (US) | 1.2448444 finger (US) | 1.2598425 finger (US) | 1.2748406 finger (US) | 1.2898388 finger (US) | 1.3048369 finger (US) | 1.3198350 finger (US) | 1.3348331 finger (US) | 1.3498313 finger (US) | 1.3648294 finger (US) | 1.3798275 finger (US) | 1.3948256 finger (US) | 1.4098238 finger (US) | 1.4248219 finger (US) | 1.4398200 finger (US) | 1.4548181 finger (US) | 1.4698163 finger (US) | 1.4848144 finger (US) | 1.4998125 finger (US) |
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 = 0.014998125234346 finger | 4 french; charriere = 0.059992500937383 finger |
| 1.5 french; charriere = 0.022497187851519 finger | 4.5 french; charriere = 0.067491563554556 finger |
| 2 french; charriere = 0.029996250468691 finger | 5 french; charriere = 0.074990626171729 finger |
| 2.5 french; charriere = 0.037495313085864 finger | 5.5 french; charriere = 0.082489688788901 finger |
| 3 french; charriere = 0.044994375703037 finger | 6 french; charriere = 0.089988751406074 finger |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot.
| 1 finger = 66.675 french; charriere | 4 finger = 266.7 french; charriere |
| 1.5 finger = 100.0125 french; charriere | 4.5 finger = 300.0375 french; charriere |
| 2 finger = 133.35 french; charriere | 5 finger = 333.375 french; charriere |
| 2.5 finger = 166.6875 french; charriere | 5.5 finger = 366.7125 french; charriere |
| 3 finger = 200.025 french; charriere | 6 finger = 400.05 french; charriere |
| 1 french; charriere = 0.0149981 finger |
| 1 finger = 66.675 french; charriere |