attometer | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 am | 13 am | 14 am | 15 am | 16 am | 17 am | 18 am | 19 am | 20 am | 21 am | 22 am | 23 am | 24 am | 25 am | 26 am | 27 am | 28 am | 29 am | 30 am | 31 am | 32 am | 33 am | 34 am | 35 am | 36 am | 37 am | 38 am | 39 am | 40 am | 41 am | 42 am | 43 am | 44 am | 45 am | 46 am | 47 am | 48 am | 49 am | 50 am | 51 am | 52 am | 53 am | 54 am | 55 am | 56 am | 57 am | 58 am | 59 am | 60 am | 61 am | 62 am | 63 am | 64 am | 65 am | 66 am | 67 am | 68 am | 69 am | 70 am | 71 am | 72 am | 73 am | 74 am | 75 am | 76 am | 77 am | 78 am | 79 am | 80 am | 81 am | 82 am | 83 am | 84 am | 85 am | 86 am | 87 am | 88 am | 89 am | 90 am | 91 am | 92 am | 93 am | 94 am | 95 am | 96 am | 97 am | 98 am | 99 am | 100 am |
french; charriere | 3.0 × 10-15 F | 6.0 × 10-15 F | 9.0 × 10-15 F | 1.2 × 10-14 F | 1.5 × 10-14 F | 1.8 × 10-14 F | 2.1 × 10-14 F | 2.4 × 10-14 F | 2.7 × 10-14 F | 3.0 × 10-14 F | 3.3 × 10-14 F | 3.6 × 10-14 F | 3.9 × 10-14 F | 4.2 × 10-14 F | 4.5 × 10-14 F | 4.8 × 10-14 F | 5.1 × 10-14 F | 5.4 × 10-14 F | 5.7 × 10-14 F | 6.0 × 10-14 F | 6.3 × 10-14 F | 6.6 × 10-14 F | 6.9 × 10-14 F | 7.2 × 10-14 F | 7.5 × 10-14 F | 7.8 × 10-14 F | 8.1 × 10-14 F | 8.4 × 10-14 F | 8.7 × 10-14 F | 9.0 × 10-14 F | 9.3 × 10-14 F | 9.6 × 10-14 F | 9.9 × 10-14 F | 1.02 × 10-13 F | 1.05 × 10-13 F | 1.08 × 10-13 F | 1.11 × 10-13 F | 1.14 × 10-13 F | 1.17 × 10-13 F | 1.2 × 10-13 F | 1.23 × 10-13 F | 1.26 × 10-13 F | 1.29 × 10-13 F | 1.32 × 10-13 F | 1.35 × 10-13 F | 1.38 × 10-13 F | 1.41 × 10-13 F | 1.44 × 10-13 F | 1.47 × 10-13 F | 1.5 × 10-13 F | 1.53 × 10-13 F | 1.56 × 10-13 F | 1.59 × 10-13 F | 1.62 × 10-13 F | 1.65 × 10-13 F | 1.68 × 10-13 F | 1.71 × 10-13 F | 1.74 × 10-13 F | 1.77 × 10-13 F | 1.8 × 10-13 F | 1.83 × 10-13 F | 1.86 × 10-13 F | 1.89 × 10-13 F | 1.92 × 10-13 F | 1.95 × 10-13 F | 1.98 × 10-13 F | 2.01 × 10-13 F | 2.04 × 10-13 F | 2.07 × 10-13 F | 2.1 × 10-13 F | 2.13 × 10-13 F | 2.16 × 10-13 F | 2.19 × 10-13 F | 2.22 × 10-13 F | 2.25 × 10-13 F | 2.28 × 10-13 F | 2.31 × 10-13 F | 2.34 × 10-13 F | 2.37 × 10-13 F | 2.4 × 10-13 F | 2.43 × 10-13 F | 2.46 × 10-13 F | 2.49 × 10-13 F | 2.52 × 10-13 F | 2.55 × 10-13 F | 2.58 × 10-13 F | 2.61 × 10-13 F | 2.64 × 10-13 F | 2.67 × 10-13 F | 2.7 × 10-13 F | 2.73 × 10-13 F | 2.76 × 10-13 F | 2.79 × 10-13 F | 2.82 × 10-13 F | 2.85 × 10-13 F | 2.88 × 10-13 F | 2.91 × 10-13 F | 2.94 × 10-13 F | 2.97 × 10-13 F | 3.0 × 10-13 F |
An attometer is a unit of length, a combination of the metric prefix atto (symbol a) and the SI unit of length meter (symbol m), equal to 10−18 meter or 1.0E-18 meter and its symbol is am. Plural name is attometers.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attometer | am | ≡ 1×10-18 m | ≡ 1×10-18 m | Metric system SI |
attometers | french; charriere | attometers | french; charriere |
---|---|---|---|
1 | = 3.0E-15 | 4 | = 1.2E-14 |
1.5 | = 4.5E-15 | 4.5 | = 1.35E-14 |
2 | = 6.0E-15 | 5 | = 1.5E-14 |
2.5 | = 7.5E-15 | 5.5 | = 1.65E-14 |
3 | = 9.0E-15 | 6 | = 1.8E-14 |
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 | attometers | french; charriere | attometers |
---|---|---|---|
1 | = 3.3333333333333E+14 | 4 | = 1.3333333333333E+15 |
1.5 | = 5.0E+14 | 4.5 | = 1.5E+15 |
2 | = 6.6666666666667E+14 | 5 | = 1.6666666666667E+15 |
2.5 | = 8.3333333333333E+14 | 5.5 | = 1.8333333333333E+15 |
3 | = 1.0E+15 | 6 | = 2.0E+15 |
attometers | french; charriere |
---|---|
1 | = 3.0 × 10-15 |
3.3333333333333 × 1014 | = 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 …) |