foot, metric | 1 mf | 2 mf | 3 mf | 4 mf | 5 mf | 6 mf | 7 mf | 8 mf | 9 mf | 10 mf | 11 mf | 12 mf | 13 mf | 14 mf | 15 mf | 16 mf | 17 mf | 18 mf | 19 mf | 20 mf | 21 mf | 22 mf | 23 mf | 24 mf | 25 mf | 26 mf | 27 mf | 28 mf | 29 mf | 30 mf | 31 mf | 32 mf | 33 mf | 34 mf | 35 mf | 36 mf | 37 mf | 38 mf | 39 mf | 40 mf | 41 mf | 42 mf | 43 mf | 44 mf | 45 mf | 46 mf | 47 mf | 48 mf | 49 mf | 50 mf | 51 mf | 52 mf | 53 mf | 54 mf | 55 mf | 56 mf | 57 mf | 58 mf | 59 mf | 60 mf | 61 mf | 62 mf | 63 mf | 64 mf | 65 mf | 66 mf | 67 mf | 68 mf | 69 mf | 70 mf | 71 mf | 72 mf | 73 mf | 74 mf | 75 mf | 76 mf | 77 mf | 78 mf | 79 mf | 80 mf | 81 mf | 82 mf | 83 mf | 84 mf | 85 mf | 86 mf | 87 mf | 88 mf | 89 mf | 90 mf | 91 mf | 92 mf | 93 mf | 94 mf | 95 mf | 96 mf | 97 mf | 98 mf | 99 mf | 100 mf |
french; charriere | 948.6832981 F | 1,897.3665961 F | 2,846.0498942 F | 3,794.7331922 F | 4,743.4164903 F | 5,692.0997884 F | 6,640.7830864 F | 7,589.4663845 F | 8,538.1496825 F | 9,486.8329806 F | 10,435.5162787 F | 11,384.1995767 F | 12,332.8828748 F | 13,281.5661728 F | 14,230.2494709 F | 15,178.9327690 F | 16,127.6160670 F | 17,076.2993651 F | 18,024.9826631 F | 18,973.6659612 F | 19,922.3492593 F | 20,871.0325573 F | 21,819.7158554 F | 22,768.3991534 F | 23,717.0824515 F | 24,665.7657496 F | 25,614.4490476 F | 26,563.1323457 F | 27,511.8156437 F | 28,460.4989418 F | 29,409.1822399 F | 30,357.8655379 F | 31,306.5488360 F | 32,255.2321340 F | 33,203.9154321 F | 34,152.5987302 F | 35,101.2820282 F | 36,049.9653263 F | 36,998.6486243 F | 37,947.3319224 F | 38,896.0152205 F | 39,844.6985185 F | 40,793.3818166 F | 41,742.0651146 F | 42,690.7484127 F | 43,639.4317108 F | 44,588.1150088 F | 45,536.7983069 F | 46,485.4816049 F | 47,434.164903 F | 48,382.8482011 F | 49,331.5314991 F | 50,280.2147972 F | 51,228.8980952 F | 52,177.5813933 F | 53,126.2646914 F | 54,074.9479894 F | 55,023.6312875 F | 55,972.3145855 F | 56,920.9978836 F | 57,869.6811817 F | 58,818.3644797 F | 59,767.0477778 F | 60,715.7310758 F | 61,664.4143739 F | 62,613.0976720 F | 63,561.7809700 F | 64,510.4642681 F | 65,459.1475661 F | 66,407.8308642 F | 67,356.5141623 F | 68,305.1974603 F | 69,253.8807584 F | 70,202.5640564 F | 71,151.2473545 F | 72,099.9306526 F | 73,048.6139506 F | 73,997.2972487 F | 74,945.9805467 F | 75,894.6638448 F | 76,843.3471429 F | 77,792.0304409 F | 78,740.7137390 F | 79,689.3970370 F | 80,638.0803351 F | 81,586.7636332 F | 82,535.4469312 F | 83,484.1302293 F | 84,432.8135273 F | 85,381.4968254 F | 86,330.1801235 F | 87,278.8634215 F | 88,227.5467196 F | 89,176.2300176 F | 90,124.9133157 F | 91,073.5966138 F | 92,022.2799118 F | 92,970.9632099 F | 93,919.6465079 F | 94,868.329806 F |
A metric foot is a nickname for a preferred number length of 3 basic modules (3 M), or 30 centimetres (11.811 in). The 30 cm metric ruler was a similar length to the traditional imperial one-foot ruler. A metric foot is 4.8 millimetres (0.189 in) shorter than an imperial foot.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot, metric | mf | ≡ √ 1⁄10 m | ≈ 0.31622776602 m | Metric system Non-SI |
feet, metric | french; charriere | feet, metric | french; charriere |
---|---|---|---|
1 | ≈ 948.68329806 | 4 | ≈ 3794.73319224 |
1.5 | ≈ 1423.02494709 | 4.5 | ≈ 4269.07484127 |
2 | ≈ 1897.36659612 | 5 | ≈ 4743.4164903 |
2.5 | ≈ 2371.70824515 | 5.5 | ≈ 5217.75813933 |
3 | ≈ 2846.04989418 | 6 | ≈ 5692.09978836 |
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 | feet, metric | french; charriere | feet, metric |
---|---|---|---|
1 | ≈ 0.0010540925533789 | 4 | ≈ 0.0042163702135157 |
1.5 | ≈ 0.0015811388300684 | 4.5 | ≈ 0.0047434164902051 |
2 | ≈ 0.0021081851067578 | 5 | ≈ 0.0052704627668946 |
2.5 | ≈ 0.0026352313834473 | 5.5 | ≈ 0.0057975090435841 |
3 | ≈ 0.0031622776601368 | 6 | ≈ 0.0063245553202735 |
feet, metric | french; charriere |
---|---|
1 | ≈ 948.6832981 |
0.0010541 | ≈ 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 …) |