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 |
palm | 0.0043745 palm | 0.0087489 palm | 0.0131234 palm | 0.0174978 palm | 0.0218723 palm | 0.0262467 palm | 0.0306212 palm | 0.0349956 palm | 0.0393701 palm | 0.0437445 palm | 0.0481190 palm | 0.0524934 palm | 0.0568679 palm | 0.0612423 palm | 0.0656168 palm | 0.0699913 palm | 0.0743657 palm | 0.0787402 palm | 0.0831146 palm | 0.0874891 palm | 0.0918635 palm | 0.0962380 palm | 0.1006124 palm | 0.1049869 palm | 0.1093613 palm | 0.1137358 palm | 0.1181102 palm | 0.1224847 palm | 0.1268591 palm | 0.1312336 palm | 0.1356080 palm | 0.1399825 palm | 0.1443570 palm | 0.1487314 palm | 0.1531059 palm | 0.1574803 palm | 0.1618548 palm | 0.1662292 palm | 0.1706037 palm | 0.1749781 palm | 0.1793526 palm | 0.1837270 palm | 0.1881015 palm | 0.1924759 palm | 0.1968504 palm | 0.2012248 palm | 0.2055993 palm | 0.2099738 palm | 0.2143482 palm | 0.2187227 palm | 0.2230971 palm | 0.2274716 palm | 0.2318460 palm | 0.2362205 palm | 0.2405949 palm | 0.2449694 palm | 0.2493438 palm | 0.2537183 palm | 0.2580927 palm | 0.2624672 palm | 0.2668416 palm | 0.2712161 palm | 0.2755906 palm | 0.2799650 palm | 0.2843395 palm | 0.2887139 palm | 0.2930884 palm | 0.2974628 palm | 0.3018373 palm | 0.3062117 palm | 0.3105862 palm | 0.3149606 palm | 0.3193351 palm | 0.3237095 palm | 0.3280840 palm | 0.3324584 palm | 0.3368329 palm | 0.3412073 palm | 0.3455818 palm | 0.3499563 palm | 0.3543307 palm | 0.3587052 palm | 0.3630796 palm | 0.3674541 palm | 0.3718285 palm | 0.3762030 palm | 0.3805774 palm | 0.3849519 palm | 0.3893263 palm | 0.3937008 palm | 0.3980752 palm | 0.4024497 palm | 0.4068241 palm | 0.4111986 palm | 0.4155731 palm | 0.4199475 palm | 0.4243220 palm | 0.4286964 palm | 0.4330709 palm | 0.4374453 palm |
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 | palms | french; charriere | palms |
---|---|---|---|
1 | = 0.0043744531933508 | 4 | = 0.017497812773403 |
1.5 | = 0.0065616797900262 | 4.5 | = 0.019685039370079 |
2 | = 0.0087489063867017 | 5 | = 0.021872265966754 |
2.5 | = 0.010936132983377 | 5.5 | = 0.02405949256343 |
3 | = 0.013123359580052 | 6 | = 0.026246719160105 |
The palm is an obsolete anthropic unit of length, originally based on the width of the human palm and then variously standardized. The same name is also used for a second, rather larger unit based on the length of the human hand.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
palm | ≡ 3 in | = 0.0762 m | Other (Length) |
palms | french; charriere | palms | french; charriere |
---|---|---|---|
1 | = 228.6 | 4 | = 914.4 |
1.5 | = 342.9 | 4.5 | = 1028.7 |
2 | = 457.2 | 5 | = 1143 |
2.5 | = 571.5 | 5.5 | = 1257.3 |
3 | = 685.8 | 6 | = 1371.6 |
french; charriere | palms |
---|---|
1 | = 0.0043745 |
228.6 | = 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 …) |