| 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 |
| point (typography) | 0.9484252 pt | 1.8968504 pt | 2.8452756 pt | 3.7937008 pt | 4.7421260 pt | 5.6905512 pt | 6.6389764 pt | 7.5874017 pt | 8.5358269 pt | 9.4842521 pt | 10.4326773 pt | 11.3811025 pt | 12.3295277 pt | 13.2779529 pt | 14.2263781 pt | 15.1748033 pt | 16.1232285 pt | 17.0716537 pt | 18.0200789 pt | 18.9685041 pt | 19.9169293 pt | 20.8653545 pt | 21.8137797 pt | 22.7622050 pt | 23.7106302 pt | 24.6590554 pt | 25.6074806 pt | 26.5559058 pt | 27.5043310 pt | 28.4527562 pt | 29.4011814 pt | 30.3496066 pt | 31.2980318 pt | 32.2464570 pt | 33.1948822 pt | 34.1433074 pt | 35.0917326 pt | 36.0401578 pt | 36.9885830 pt | 37.9370083 pt | 38.8854335 pt | 39.8338587 pt | 40.7822839 pt | 41.7307091 pt | 42.6791343 pt | 43.6275595 pt | 44.5759847 pt | 45.5244099 pt | 46.4728351 pt | 47.4212603 pt | 48.3696855 pt | 49.3181107 pt | 50.2665359 pt | 51.2149611 pt | 52.1633863 pt | 53.1118116 pt | 54.0602368 pt | 55.0086620 pt | 55.9570872 pt | 56.9055124 pt | 57.8539376 pt | 58.8023628 pt | 59.7507880 pt | 60.6992132 pt | 61.6476384 pt | 62.5960636 pt | 63.5444888 pt | 64.4929140 pt | 65.4413392 pt | 66.3897644 pt | 67.3381896 pt | 68.2866149 pt | 69.2350401 pt | 70.1834653 pt | 71.1318905 pt | 72.0803157 pt | 73.0287409 pt | 73.9771661 pt | 74.9255913 pt | 75.8740165 pt | 76.8224417 pt | 77.7708669 pt | 78.7192921 pt | 79.6677173 pt | 80.6161425 pt | 81.5645677 pt | 82.5129930 pt | 83.4614182 pt | 84.4098434 pt | 85.3582686 pt | 86.3066938 pt | 87.2551190 pt | 88.2035442 pt | 89.1519694 pt | 90.1003946 pt | 91.0488198 pt | 91.9972450 pt | 92.9456702 pt | 93.8940954 pt | 94.8425206 pt |
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 = 0.94842520633465 points (typography) | 4 french; charriere = 3.7937008253386 points (typography) |
| 1.5 french; charriere = 1.422637809502 points (typography) | 4.5 french; charriere = 4.2679134285059 points (typography) |
| 2 french; charriere = 1.8968504126693 points (typography) | 5 french; charriere = 4.7421260316732 points (typography) |
| 2.5 french; charriere = 2.3710630158366 points (typography) | 5.5 french; charriere = 5.2163386348406 points (typography) |
| 3 french; charriere = 2.8452756190039 points (typography) | 6 french; charriere = 5.6905512380079 points (typography) |
≡ 1⁄72.27 in
| 1 points (typography) = 1.0543794 french; charriere | 4 points (typography) = 4.2175176 french; charriere |
| 1.5 points (typography) = 1.5815691 french; charriere | 4.5 points (typography) = 4.7447073 french; charriere |
| 2 points (typography) = 2.1087588 french; charriere | 5 points (typography) = 5.271897 french; charriere |
| 2.5 points (typography) = 2.6359485 french; charriere | 5.5 points (typography) = 5.7990867 french; charriere |
| 3 points (typography) = 3.1631382 french; charriere | 6 points (typography) = 6.3262764 french; charriere |
| 1 french; charriere = 0.9484252 points (typography) |
| 1 points (typography) = 1.0543794 french; charriere |