| finger | 1 finger (US) | 2 finger (US) | 3 finger (US) | 4 finger (US) | 5 finger (US) | 6 finger (US) | 7 finger (US) | 8 finger (US) | 9 finger (US) | 10 finger (US) | 11 finger (US) | 12 finger (US) | 13 finger (US) | 14 finger (US) | 15 finger (US) | 16 finger (US) | 17 finger (US) | 18 finger (US) | 19 finger (US) | 20 finger (US) | 21 finger (US) | 22 finger (US) | 23 finger (US) | 24 finger (US) | 25 finger (US) | 26 finger (US) | 27 finger (US) | 28 finger (US) | 29 finger (US) | 30 finger (US) | 31 finger (US) | 32 finger (US) | 33 finger (US) | 34 finger (US) | 35 finger (US) | 36 finger (US) | 37 finger (US) | 38 finger (US) | 39 finger (US) | 40 finger (US) | 41 finger (US) | 42 finger (US) | 43 finger (US) | 44 finger (US) | 45 finger (US) | 46 finger (US) | 47 finger (US) | 48 finger (US) | 49 finger (US) | 50 finger (US) | 51 finger (US) | 52 finger (US) | 53 finger (US) | 54 finger (US) | 55 finger (US) | 56 finger (US) | 57 finger (US) | 58 finger (US) | 59 finger (US) | 60 finger (US) | 61 finger (US) | 62 finger (US) | 63 finger (US) | 64 finger (US) | 65 finger (US) | 66 finger (US) | 67 finger (US) | 68 finger (US) | 69 finger (US) | 70 finger (US) | 71 finger (US) | 72 finger (US) | 73 finger (US) | 74 finger (US) | 75 finger (US) | 76 finger (US) | 77 finger (US) | 78 finger (US) | 79 finger (US) | 80 finger (US) | 81 finger (US) | 82 finger (US) | 83 finger (US) | 84 finger (US) | 85 finger (US) | 86 finger (US) | 87 finger (US) | 88 finger (US) | 89 finger (US) | 90 finger (US) | 91 finger (US) | 92 finger (US) | 93 finger (US) | 94 finger (US) | 95 finger (US) | 96 finger (US) | 97 finger (US) | 98 finger (US) | 99 finger (US) | 100 finger (US) |
| french; charriere | 66.675 F | 133.35 F | 200.025 F | 266.7 F | 333.375 F | 400.05 F | 466.725 F | 533.4 F | 600.075 F | 666.75 F | 733.425 F | 800.1 F | 866.775 F | 933.45 F | 1,000.125 F | 1,066.8 F | 1,133.475 F | 1,200.15 F | 1,266.825 F | 1,333.5 F | 1,400.175 F | 1,466.85 F | 1,533.525 F | 1,600.2 F | 1,666.875 F | 1,733.55 F | 1,800.225 F | 1,866.9 F | 1,933.575 F | 2,000.25 F | 2,066.925 F | 2,133.6 F | 2,200.275 F | 2,266.95 F | 2,333.625 F | 2,400.3 F | 2,466.975 F | 2,533.65 F | 2,600.325 F | 2 667 F | 2,733.675 F | 2,800.35 F | 2,867.025 F | 2,933.7 F | 3,000.375 F | 3,067.05 F | 3,133.725 F | 3,200.4 F | 3,267.075 F | 3,333.75 F | 3,400.425 F | 3,467.1 F | 3,533.775 F | 3,600.45 F | 3,667.125 F | 3,733.8 F | 3,800.475 F | 3,867.15 F | 3,933.825 F | 4,000.5 F | 4,067.175 F | 4,133.85 F | 4,200.525 F | 4,267.2 F | 4,333.875 F | 4,400.55 F | 4,467.225 F | 4,533.9 F | 4,600.575 F | 4,667.25 F | 4,733.925 F | 4,800.6 F | 4,867.275 F | 4,933.95 F | 5,000.625 F | 5,067.3 F | 5,133.975 F | 5,200.65 F | 5,267.325 F | 5 334 F | 5,400.675 F | 5,467.35 F | 5,534.025 F | 5,600.7 F | 5,667.375 F | 5,734.05 F | 5,800.725 F | 5,867.4 F | 5,934.075 F | 6,000.75 F | 6,067.425 F | 6,134.1 F | 6,200.775 F | 6,267.45 F | 6,334.125 F | 6,400.8 F | 6,467.475 F | 6,534.15 F | 6,600.825 F | 6,667.5 F |
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 |
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 |
| 1 finger = 66.675 french; charriere |
| 1 french; charriere = 0.0149981 finger |