ångström | 1 Å | 2 Å | 3 Å | 4 Å | 5 Å | 6 Å | 7 Å | 8 Å | 9 Å | 10 Å | 11 Å | 12 Å | 13 Å | 14 Å | 15 Å | 16 Å | 17 Å | 18 Å | 19 Å | 20 Å | 21 Å | 22 Å | 23 Å | 24 Å | 25 Å | 26 Å | 27 Å | 28 Å | 29 Å | 30 Å | 31 Å | 32 Å | 33 Å | 34 Å | 35 Å | 36 Å | 37 Å | 38 Å | 39 Å | 40 Å | 41 Å | 42 Å | 43 Å | 44 Å | 45 Å | 46 Å | 47 Å | 48 Å | 49 Å | 50 Å | 51 Å | 52 Å | 53 Å | 54 Å | 55 Å | 56 Å | 57 Å | 58 Å | 59 Å | 60 Å | 61 Å | 62 Å | 63 Å | 64 Å | 65 Å | 66 Å | 67 Å | 68 Å | 69 Å | 70 Å | 71 Å | 72 Å | 73 Å | 74 Å | 75 Å | 76 Å | 77 Å | 78 Å | 79 Å | 80 Å | 81 Å | 82 Å | 83 Å | 84 Å | 85 Å | 86 Å | 87 Å | 88 Å | 89 Å | 90 Å | 91 Å | 92 Å | 93 Å | 94 Å | 95 Å | 96 Å | 97 Å | 98 Å | 99 Å | 100 Å |
french; charriere | 3.0 × 10-7 F | 6.0 × 10-7 F | 9.0 × 10-7 F | 1.2 × 10-6 F | 1.5 × 10-6 F | 1.8 × 10-6 F | 2.1 × 10-6 F | 2.4 × 10-6 F | 2.7 × 10-6 F | 3.0 × 10-6 F | 3.3 × 10-6 F | 3.6 × 10-6 F | 3.9 × 10-6 F | 4.2 × 10-6 F | 4.5 × 10-6 F | 4.8 × 10-6 F | 5.1 × 10-6 F | 5.4 × 10-6 F | 5.7 × 10-6 F | 6.0 × 10-6 F | 6.3 × 10-6 F | 6.6 × 10-6 F | 6.9 × 10-6 F | 7.2 × 10-6 F | 7.5 × 10-6 F | 7.8 × 10-6 F | 8.1 × 10-6 F | 8.4 × 10-6 F | 8.7 × 10-6 F | 9.0 × 10-6 F | 9.3 × 10-6 F | 9.6 × 10-6 F | 9.9 × 10-6 F | 1.02 × 10-5 F | 1.05 × 10-5 F | 1.08 × 10-5 F | 1.11 × 10-5 F | 1.14 × 10-5 F | 1.17 × 10-5 F | 1.2 × 10-5 F | 1.23 × 10-5 F | 1.26 × 10-5 F | 1.29 × 10-5 F | 1.32 × 10-5 F | 1.35 × 10-5 F | 1.38 × 10-5 F | 1.41 × 10-5 F | 1.44 × 10-5 F | 1.47 × 10-5 F | 1.5 × 10-5 F | 1.53 × 10-5 F | 1.56 × 10-5 F | 1.59 × 10-5 F | 1.62 × 10-5 F | 1.65 × 10-5 F | 1.68 × 10-5 F | 1.71 × 10-5 F | 1.74 × 10-5 F | 1.77 × 10-5 F | 1.8 × 10-5 F | 1.83 × 10-5 F | 1.86 × 10-5 F | 1.89 × 10-5 F | 1.92 × 10-5 F | 1.95 × 10-5 F | 1.98 × 10-5 F | 2.01 × 10-5 F | 2.04 × 10-5 F | 2.07 × 10-5 F | 2.1 × 10-5 F | 2.13 × 10-5 F | 2.16 × 10-5 F | 2.19 × 10-5 F | 2.22 × 10-5 F | 2.25 × 10-5 F | 2.28 × 10-5 F | 2.31 × 10-5 F | 2.34 × 10-5 F | 2.37 × 10-5 F | 2.4 × 10-5 F | 2.43 × 10-5 F | 2.46 × 10-5 F | 2.49 × 10-5 F | 2.52 × 10-5 F | 2.55 × 10-5 F | 2.58 × 10-5 F | 2.61 × 10-5 F | 2.64 × 10-5 F | 2.67 × 10-5 F | 2.7 × 10-5 F | 2.73 × 10-5 F | 2.76 × 10-5 F | 2.79 × 10-5 F | 2.82 × 10-5 F | 2.85 × 10-5 F | 2.88 × 10-5 F | 2.91 × 10-5 F | 2.94 × 10-5 F | 2.97 × 10-5 F | 3.0 × 10-5 F |
The ångström or angstrom (IPA: /ˈɔːŋstrəm/); Swedish: [ˈɔŋstrøm]) is a unit of length equal to 10−10 m (one ten-billionth of a metre) or 0.1 nanometre. Its symbol is Å, a letter in theSwedish alphabet.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ångström | Å | ≡ 1×10−10 m | ≡ 0.1 nm | Metric system Non-SI |
ångströms | french; charriere | ångströms | french; charriere |
---|---|---|---|
1 | = 3.0E-7 | 4 | = 1.2E-6 |
1.5 | = 4.5E-7 | 4.5 | = 1.35E-6 |
2 | = 6.0E-7 | 5 | = 1.5E-6 |
2.5 | = 7.5E-7 | 5.5 | = 1.65E-6 |
3 | = 9.0E-7 | 6 | = 1.8E-6 |
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 | ångströms | french; charriere | ångströms |
---|---|---|---|
1 | = 3333333.3333333 | 4 | = 13333333.333333 |
1.5 | = 5000000 | 4.5 | = 15000000 |
2 | = 6666666.6666667 | 5 | = 16666666.666667 |
2.5 | = 8333333.3333333 | 5.5 | = 18333333.333333 |
3 | = 10000000 | 6 | = 20000000 |
ångströms | french; charriere |
---|---|
1 | = 3.0 × 10-7 |
3,333,333.3333333 | = 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 …) |