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 |
fermtometer | 100 000 fm | 200 000 fm | 300 000 fm | 400 000 fm | 500 000 fm | 600 000 fm | 700 000 fm | 800 000 fm | 900 000 fm | 1 000 000 fm | 1 100 000 fm | 1 200 000 fm | 1 300 000 fm | 1 400 000 fm | 1 500 000 fm | 1 600 000 fm | 1 700 000 fm | 1 800 000 fm | 1 900 000 fm | 2 000 000 fm | 2 100 000 fm | 2 200 000 fm | 2 300 000 fm | 2 400 000 fm | 2 500 000 fm | 2 600 000 fm | 2 700 000 fm | 2 800 000 fm | 2 900 000 fm | 3 000 000 fm | 3 100 000 fm | 3 200 000 fm | 3 300 000 fm | 3 400 000 fm | 3 500 000 fm | 3 600 000 fm | 3 700 000 fm | 3 800 000 fm | 3 900 000 fm | 4 000 000 fm | 4 100 000 fm | 4 200 000 fm | 4 300 000 fm | 4 400 000 fm | 4 500 000 fm | 4 600 000 fm | 4 700 000 fm | 4 800 000 fm | 4 900 000 fm | 5 000 000 fm | 5 100 000 fm | 5 200 000 fm | 5 300 000 fm | 5 400 000 fm | 5 500 000 fm | 5 600 000 fm | 5 700 000 fm | 5 800 000 fm | 5 900 000 fm | 6 000 000 fm | 6 100 000 fm | 6 200 000 fm | 6 300 000 fm | 6 400 000 fm | 6 500 000 fm | 6 600 000 fm | 6 700 000 fm | 6 800 000 fm | 6 900 000 fm | 7 000 000 fm | 7 100 000 fm | 7 200 000 fm | 7 300 000 fm | 7 400 000 fm | 7 500 000 fm | 7 600 000 fm | 7 700 000 fm | 7 800 000 fm | 7 900 000 fm | 8 000 000 fm | 8 100 000 fm | 8 200 000 fm | 8 300 000 fm | 8 400 000 fm | 8 500 000 fm | 8 600 000 fm | 8 700 000 fm | 8 800 000 fm | 8 900 000 fm | 9 000 000 fm | 9 100 000 fm | 9 200 000 fm | 9 300 000 fm | 9 400 000 fm | 9 500 000 fm | 9 600 000 fm | 9 700 000 fm | 9 800 000 fm | 9 900 000 fm | 10 000 000 fm |
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 | fermtometers | ångströms | fermtometers |
---|---|---|---|
1 | ≡ 100000 | 4 | ≡ 400000 |
1.5 | ≡ 150000 | 4.5 | ≡ 450000 |
2 | ≡ 200000 | 5 | ≡ 500000 |
2.5 | ≡ 250000 | 5.5 | ≡ 550000 |
3 | ≡ 300000 | 6 | ≡ 600000 |
The femtometre (American spelling femtometer, symbol fm derived from the Danish and Norwegian word femten, "fifteen"+Ancient Greek: μέτρον, metrοn, "unit of measurement") is an SI unit of length equal to 10−15 metres, which means a quadrillionth of one. This distance can also be called a fermi and was so named in honour of physicist Enrico Fermi, as it is a typical length-scale of nuclear physics.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fermtometer | fm | 1000 attometres = 1 femtometre = 1 fermi = 0.001 picometre = 1×10−15 metres 1000000 femtometres = 10 ångström = 1 nanometre. | ≡ 1×10-15 m | Metric system SI |
fermtometers | ångströms | fermtometers | ångströms |
---|---|---|---|
1 | ≡ 1.0E-5 | 4 | ≡ 4.0E-5 |
1.5 | ≡ 1.5E-5 | 4.5 | ≡ 4.5E-5 |
2 | ≡ 2.0E-5 | 5 | ≡ 5.0E-5 |
2.5 | ≡ 2.5E-5 | 5.5 | ≡ 5.5E-5 |
3 | ≡ 3.0E-5 | 6 | ≡ 6.0E-5 |
ångströms | fermtometers |
---|---|
1 | ≡ 100 000 |
1.0 × 10-5 | ≡ 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 …) |