centimeter | 1 cm | 2 cm | 3 cm | 4 cm | 5 cm | 6 cm | 7 cm | 8 cm | 9 cm | 10 cm | 11 cm | 12 cm | 13 cm | 14 cm | 15 cm | 16 cm | 17 cm | 18 cm | 19 cm | 20 cm | 21 cm | 22 cm | 23 cm | 24 cm | 25 cm | 26 cm | 27 cm | 28 cm | 29 cm | 30 cm | 31 cm | 32 cm | 33 cm | 34 cm | 35 cm | 36 cm | 37 cm | 38 cm | 39 cm | 40 cm | 41 cm | 42 cm | 43 cm | 44 cm | 45 cm | 46 cm | 47 cm | 48 cm | 49 cm | 50 cm | 51 cm | 52 cm | 53 cm | 54 cm | 55 cm | 56 cm | 57 cm | 58 cm | 59 cm | 60 cm | 61 cm | 62 cm | 63 cm | 64 cm | 65 cm | 66 cm | 67 cm | 68 cm | 69 cm | 70 cm | 71 cm | 72 cm | 73 cm | 74 cm | 75 cm | 76 cm | 77 cm | 78 cm | 79 cm | 80 cm | 81 cm | 82 cm | 83 cm | 84 cm | 85 cm | 86 cm | 87 cm | 88 cm | 89 cm | 90 cm | 91 cm | 92 cm | 93 cm | 94 cm | 95 cm | 96 cm | 97 cm | 98 cm | 99 cm | 100 cm |
french; charriere | 30 F | 60 F | 90 F | 120 F | 150 F | 180 F | 210 F | 240 F | 270 F | 300 F | 330 F | 360 F | 390 F | 420 F | 450 F | 480 F | 510 F | 540 F | 570 F | 600 F | 630 F | 660 F | 690 F | 720 F | 750 F | 780 F | 810 F | 840 F | 870 F | 900 F | 930 F | 960 F | 990 F | 1 020 F | 1 050 F | 1 080 F | 1 110 F | 1 140 F | 1 170 F | 1 200 F | 1 230 F | 1 260 F | 1 290 F | 1 320 F | 1 350 F | 1 380 F | 1 410 F | 1 440 F | 1 470 F | 1 500 F | 1 530 F | 1 560 F | 1 590 F | 1 620 F | 1 650 F | 1 680 F | 1 710 F | 1 740 F | 1 770 F | 1 800 F | 1 830 F | 1 860 F | 1 890 F | 1 920 F | 1 950 F | 1 980 F | 2 010 F | 2 040 F | 2 070 F | 2 100 F | 2 130 F | 2 160 F | 2 190 F | 2 220 F | 2 250 F | 2 280 F | 2 310 F | 2 340 F | 2 370 F | 2 400 F | 2 430 F | 2 460 F | 2 490 F | 2 520 F | 2 550 F | 2 580 F | 2 610 F | 2 640 F | 2 670 F | 2 700 F | 2 730 F | 2 760 F | 2 790 F | 2 820 F | 2 850 F | 2 880 F | 2 910 F | 2 940 F | 2 970 F | 3 000 F |
A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1/100 . The centimetre was the base unit of length in the now deprecated centimetre–gram–second (CGS) system of units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centimeter | cm | ≡ 1×10-2 m ≡ 0.01 m | ≡ 1×10-2 m ≡ 0.01 m | Metric system SI |
centimeters | french; charriere | centimeters | french; charriere |
---|---|---|---|
1 | = 30 | 4 | = 120 |
1.5 | = 45 | 4.5 | = 135 |
2 | = 60 | 5 | = 150 |
2.5 | = 75 | 5.5 | = 165 |
3 | = 90 | 6 | = 180 |
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 | centimeters | french; charriere | centimeters |
---|---|---|---|
1 | = 0.033333333333333 | 4 | = 0.13333333333333 |
1.5 | = 0.05 | 4.5 | = 0.15 |
2 | = 0.066666666666667 | 5 | = 0.16666666666667 |
2.5 | = 0.083333333333333 | 5.5 | = 0.18333333333333 |
3 | = 0.1 | 6 | = 0.2 |
centimeters | french; charriere |
---|---|
1 | = 30 |
0.0333333 | = 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 …) |