| 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 |
| mile (US Survey) | 2.0712331645899 × 10-7 mi (US) | 4.1424663291798 × 10-7 mi (US) | 6.2136994937697 × 10-7 mi (US) | 8.2849326583596 × 10-7 mi (US) | 1.035616582295 × 10-6 mi (US) | 1.2427398987539 × 10-6 mi (US) | 1.4498632152129 × 10-6 mi (US) | 1.6569865316719 × 10-6 mi (US) | 1.8641098481309 × 10-6 mi (US) | 2.0712331645899 × 10-6 mi (US) | 2.2783564810489 × 10-6 mi (US) | 2.4854797975079 × 10-6 mi (US) | 2.6926031139669 × 10-6 mi (US) | 2.8997264304259 × 10-6 mi (US) | 3.1068497468849 × 10-6 mi (US) | 3.3139730633438 × 10-6 mi (US) | 3.5210963798028 × 10-6 mi (US) | 3.7282196962618 × 10-6 mi (US) | 3.9353430127208 × 10-6 mi (US) | 4.1424663291798 × 10-6 mi (US) | 4.3495896456388 × 10-6 mi (US) | 4.5567129620978 × 10-6 mi (US) | 4.7638362785568 × 10-6 mi (US) | 4.9709595950158 × 10-6 mi (US) | 5.1780829114748 × 10-6 mi (US) | 5.3852062279338 × 10-6 mi (US) | 5.5923295443927 × 10-6 mi (US) | 5.7994528608517 × 10-6 mi (US) | 6.0065761773107 × 10-6 mi (US) | 6.2136994937697 × 10-6 mi (US) | 6.4208228102287 × 10-6 mi (US) | 6.6279461266877 × 10-6 mi (US) | 6.8350694431467 × 10-6 mi (US) | 7.0421927596057 × 10-6 mi (US) | 7.2493160760647 × 10-6 mi (US) | 7.4564393925237 × 10-6 mi (US) | 7.6635627089827 × 10-6 mi (US) | 7.8706860254416 × 10-6 mi (US) | 8.0778093419006 × 10-6 mi (US) | 8.2849326583596 × 10-6 mi (US) | 8.4920559748186 × 10-6 mi (US) | 8.6991792912776 × 10-6 mi (US) | 8.9063026077366 × 10-6 mi (US) | 9.1134259241956 × 10-6 mi (US) | 9.3205492406546 × 10-6 mi (US) | 9.5276725571136 × 10-6 mi (US) | 9.7347958735726 × 10-6 mi (US) | 9.9419191900315 × 10-6 mi (US) | 1.0149042506491 × 10-5 mi (US) | 1.035616582295 × 10-5 mi (US) | 1.0563289139409 × 10-5 mi (US) | 1.0770412455868 × 10-5 mi (US) | 1.0977535772326 × 10-5 mi (US) | 1.1184659088785 × 10-5 mi (US) | 1.1391782405244 × 10-5 mi (US) | 1.1598905721703 × 10-5 mi (US) | 1.1806029038162 × 10-5 mi (US) | 1.2013152354621 × 10-5 mi (US) | 1.222027567108 × 10-5 mi (US) | 1.2427398987539 × 10-5 mi (US) | 1.2634522303998 × 10-5 mi (US) | 1.2841645620457 × 10-5 mi (US) | 1.3048768936916 × 10-5 mi (US) | 1.3255892253375 × 10-5 mi (US) | 1.3463015569834 × 10-5 mi (US) | 1.3670138886293 × 10-5 mi (US) | 1.3877262202752 × 10-5 mi (US) | 1.4084385519211 × 10-5 mi (US) | 1.429150883567 × 10-5 mi (US) | 1.4498632152129 × 10-5 mi (US) | 1.4705755468588 × 10-5 mi (US) | 1.4912878785047 × 10-5 mi (US) | 1.5120002101506 × 10-5 mi (US) | 1.5327125417965 × 10-5 mi (US) | 1.5534248734424 × 10-5 mi (US) | 1.5741372050883 × 10-5 mi (US) | 1.5948495367342 × 10-5 mi (US) | 1.6155618683801 × 10-5 mi (US) | 1.636274200026 × 10-5 mi (US) | 1.6569865316719 × 10-5 mi (US) | 1.6776988633178 × 10-5 mi (US) | 1.6984111949637 × 10-5 mi (US) | 1.7191235266096 × 10-5 mi (US) | 1.7398358582555 × 10-5 mi (US) | 1.7605481899014 × 10-5 mi (US) | 1.7812605215473 × 10-5 mi (US) | 1.8019728531932 × 10-5 mi (US) | 1.8226851848391 × 10-5 mi (US) | 1.843397516485 × 10-5 mi (US) | 1.8641098481309 × 10-5 mi (US) | 1.8848221797768 × 10-5 mi (US) | 1.9055345114227 × 10-5 mi (US) | 1.9262468430686 × 10-5 mi (US) | 1.9469591747145 × 10-5 mi (US) | 1.9676715063604 × 10-5 mi (US) | 1.9883838380063 × 10-5 mi (US) | 2.0090961696522 × 10-5 mi (US) | 2.0298085012981 × 10-5 mi (US) | 2.050520832944 × 10-5 mi (US) | 2.0712331645899 × 10-5 mi (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 ≈ 2.0712331645899E-7 miles (US Survey) | 4 french; charriere ≈ 8.2849326583596E-7 miles (US Survey) |
| 1.5 french; charriere ≈ 3.1068497468849E-7 miles (US Survey) | 4.5 french; charriere ≈ 9.3205492406546E-7 miles (US Survey) |
| 2 french; charriere ≈ 4.1424663291798E-7 miles (US Survey) | 5 french; charriere ≈ 1.035616582295E-6 miles (US Survey) |
| 2.5 french; charriere ≈ 5.1780829114748E-7 miles (US Survey) | 5.5 french; charriere ≈ 1.1391782405244E-6 miles (US Survey) |
| 3 french; charriere ≈ 6.2136994937697E-7 miles (US Survey) | 6 french; charriere ≈ 1.2427398987539E-6 miles (US Survey) |
≡ 5280 US Survey feet ≡ (5280 × 1200⁄3937) m
| 1 miles (US Survey) ≈ 4828041.657 french; charriere | 4 miles (US Survey) ≈ 19312166.628 french; charriere |
| 1.5 miles (US Survey) ≈ 7242062.4855 french; charriere | 4.5 miles (US Survey) ≈ 21726187.4565 french; charriere |
| 2 miles (US Survey) ≈ 9656083.314 french; charriere | 5 miles (US Survey) ≈ 24140208.285 french; charriere |
| 2.5 miles (US Survey) ≈ 12070104.1425 french; charriere | 5.5 miles (US Survey) ≈ 26554229.1135 french; charriere |
| 3 miles (US Survey) ≈ 14484124.971 french; charriere | 6 miles (US Survey) ≈ 28968249.942 french; charriere |
| 1 french; charriere ≈ 2.0712331645899 × 10-7 miles (US Survey) |
| 1 miles (US Survey) ≈ 4,828,041.657 french; charriere |