| terameter | 1 Tm | 2 Tm | 3 Tm | 4 Tm | 5 Tm | 6 Tm | 7 Tm | 8 Tm | 9 Tm | 10 Tm | 11 Tm | 12 Tm | 13 Tm | 14 Tm | 15 Tm | 16 Tm | 17 Tm | 18 Tm | 19 Tm | 20 Tm | 21 Tm | 22 Tm | 23 Tm | 24 Tm | 25 Tm | 26 Tm | 27 Tm | 28 Tm | 29 Tm | 30 Tm | 31 Tm | 32 Tm | 33 Tm | 34 Tm | 35 Tm | 36 Tm | 37 Tm | 38 Tm | 39 Tm | 40 Tm | 41 Tm | 42 Tm | 43 Tm | 44 Tm | 45 Tm | 46 Tm | 47 Tm | 48 Tm | 49 Tm | 50 Tm | 51 Tm | 52 Tm | 53 Tm | 54 Tm | 55 Tm | 56 Tm | 57 Tm | 58 Tm | 59 Tm | 60 Tm | 61 Tm | 62 Tm | 63 Tm | 64 Tm | 65 Tm | 66 Tm | 67 Tm | 68 Tm | 69 Tm | 70 Tm | 71 Tm | 72 Tm | 73 Tm | 74 Tm | 75 Tm | 76 Tm | 77 Tm | 78 Tm | 79 Tm | 80 Tm | 81 Tm | 82 Tm | 83 Tm | 84 Tm | 85 Tm | 86 Tm | 87 Tm | 88 Tm | 89 Tm | 90 Tm | 91 Tm | 92 Tm | 93 Tm | 94 Tm | 95 Tm | 96 Tm | 97 Tm | 98 Tm | 99 Tm | 100 Tm |
| french; charriere | 3.0 × 1015 F | 6.0 × 1015 F | 9.0 × 1015 F | 1.2 × 1016 F | 1.5 × 1016 F | 1.8 × 1016 F | 2.1 × 1016 F | 2.4 × 1016 F | 2.7 × 1016 F | 3.0 × 1016 F | 3.3 × 1016 F | 3.6 × 1016 F | 3.9 × 1016 F | 4.2 × 1016 F | 4.5 × 1016 F | 4.8 × 1016 F | 5.1 × 1016 F | 5.4 × 1016 F | 5.7 × 1016 F | 6.0 × 1016 F | 6.3 × 1016 F | 6.6 × 1016 F | 6.9 × 1016 F | 7.2 × 1016 F | 7.5 × 1016 F | 7.8 × 1016 F | 8.1 × 1016 F | 8.4 × 1016 F | 8.7 × 1016 F | 9.0 × 1016 F | 9.3 × 1016 F | 9.6 × 1016 F | 9.9 × 1016 F | 1.02 × 1017 F | 1.05 × 1017 F | 1.08 × 1017 F | 1.11 × 1017 F | 1.14 × 1017 F | 1.17 × 1017 F | 1.2 × 1017 F | 1.23 × 1017 F | 1.26 × 1017 F | 1.29 × 1017 F | 1.32 × 1017 F | 1.35 × 1017 F | 1.38 × 1017 F | 1.41 × 1017 F | 1.44 × 1017 F | 1.47 × 1017 F | 1.5 × 1017 F | 1.53 × 1017 F | 1.56 × 1017 F | 1.59 × 1017 F | 1.62 × 1017 F | 1.65 × 1017 F | 1.68 × 1017 F | 1.71 × 1017 F | 1.74 × 1017 F | 1.77 × 1017 F | 1.8 × 1017 F | 1.83 × 1017 F | 1.86 × 1017 F | 1.89 × 1017 F | 1.92 × 1017 F | 1.95 × 1017 F | 1.98 × 1017 F | 2.01 × 1017 F | 2.04 × 1017 F | 2.07 × 1017 F | 2.1 × 1017 F | 2.13 × 1017 F | 2.16 × 1017 F | 2.19 × 1017 F | 2.22 × 1017 F | 2.25 × 1017 F | 2.28 × 1017 F | 2.31 × 1017 F | 2.34 × 1017 F | 2.37 × 1017 F | 2.4 × 1017 F | 2.43 × 1017 F | 2.46 × 1017 F | 2.49 × 1017 F | 2.52 × 1017 F | 2.55 × 1017 F | 2.58 × 1017 F | 2.61 × 1017 F | 2.64 × 1017 F | 2.67 × 1017 F | 2.7 × 1017 F | 2.73 × 1017 F | 2.76 × 1017 F | 2.79 × 1017 F | 2.82 × 1017 F | 2.85 × 1017 F | 2.88 × 1017 F | 2.91 × 1017 F | 2.94 × 1017 F | 2.97 × 1017 F | 3.0 × 1017 F |
Terameter or teramatre is equal to 1E+12 (1012) meters (unit of length), comes from a combination of the metric prefix tera (T) and the SI unit of length meter (m). Plural name is terameters.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| terameter | Tm | ≡ 1×1012 m | ≡ 1×1012 m | Metric system SI |
| terameters | french; charriere | terameters | french; charriere |
|---|---|---|---|
| 1 | = 3.0E+15 | 4 | = 1.2E+16 |
| 1.5 | = 4.5E+15 | 4.5 | = 1.35E+16 |
| 2 | = 6.0E+15 | 5 | = 1.5E+16 |
| 2.5 | = 7.5E+15 | 5.5 | = 1.65E+16 |
| 3 | = 9.0E+15 | 6 | = 1.8E+16 |
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 | terameters | french; charriere | terameters |
|---|---|---|---|
| 1 | = 3.3333333333333E-16 | 4 | = 1.3333333333333E-15 |
| 1.5 | = 5.0E-16 | 4.5 | = 1.5E-15 |
| 2 | = 6.6666666666667E-16 | 5 | = 1.6666666666667E-15 |
| 2.5 | = 8.3333333333333E-16 | 5.5 | = 1.8333333333333E-15 |
| 3 | = 1.0E-15 | 6 | = 2.0E-15 |
| terameters | french; charriere |
|---|---|
| 1 | = 3.0 × 1015 |
| 3.3333333333333 × 10-16 | = 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 …) |