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).
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 | points (typography) | french; charriere | points (typography) |
---|---|---|---|
1 | = 0.94842520633465 | 4 | = 3.7937008253386 |
1.5 | = 1.422637809502 | 4.5 | = 4.2679134285059 |
2 | = 1.8968504126693 | 5 | = 4.7421260316732 |
2.5 | = 2.3710630158366 | 5.5 | = 5.2163386348406 |
3 | = 2.8452756190039 | 6 | = 5.6905512380079 |
≡ 1⁄72.27 in
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (typography) | pt | ≡ 1⁄72.27 in | = 0.0003514598 m | Other (Length) |
points (typography) | french; charriere | points (typography) | french; charriere |
---|---|---|---|
1 | = 1.0543794 | 4 | = 4.2175176 |
1.5 | = 1.5815691 | 4.5 | = 4.7447073 |
2 | = 2.1087588 | 5 | = 5.271897 |
2.5 | = 2.6359485 | 5.5 | = 5.7990867 |
3 | = 3.1631382 | 6 | = 6.3262764 |
french; charriere | points (typography) |
---|---|
1 | = 0.9484252 |
1.0543794 | = 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 …) |