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 |
fermtometer | 0.001 fm | 0.002 fm | 0.003 fm | 0.004 fm | 0.005 fm | 0.006 fm | 0.007 fm | 0.008 fm | 0.009 fm | 0.01 fm | 0.011 fm | 0.012 fm | 0.013 fm | 0.014 fm | 0.015 fm | 0.016 fm | 0.017 fm | 0.018 fm | 0.019 fm | 0.02 fm | 0.021 fm | 0.022 fm | 0.023 fm | 0.024 fm | 0.025 fm | 0.026 fm | 0.027 fm | 0.028 fm | 0.029 fm | 0.03 fm | 0.031 fm | 0.032 fm | 0.033 fm | 0.034 fm | 0.035 fm | 0.036 fm | 0.037 fm | 0.038 fm | 0.039 fm | 0.04 fm | 0.041 fm | 0.042 fm | 0.043 fm | 0.044 fm | 0.045 fm | 0.046 fm | 0.047 fm | 0.048 fm | 0.049 fm | 0.05 fm | 0.051 fm | 0.052 fm | 0.053 fm | 0.054 fm | 0.055 fm | 0.056 fm | 0.057 fm | 0.058 fm | 0.059 fm | 0.06 fm | 0.061 fm | 0.062 fm | 0.063 fm | 0.064 fm | 0.065 fm | 0.066 fm | 0.067 fm | 0.068 fm | 0.069 fm | 0.07 fm | 0.071 fm | 0.072 fm | 0.073 fm | 0.074 fm | 0.075 fm | 0.076 fm | 0.077 fm | 0.078 fm | 0.079 fm | 0.08 fm | 0.081 fm | 0.082 fm | 0.083 fm | 0.084 fm | 0.085 fm | 0.086 fm | 0.087 fm | 0.088 fm | 0.089 fm | 0.09 fm | 0.091 fm | 0.092 fm | 0.093 fm | 0.094 fm | 0.095 fm | 0.096 fm | 0.097 fm | 0.098 fm | 0.099 fm | 0.1 fm |
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 | fermtometers | attometers | fermtometers |
---|---|---|---|
1 | ≡ 0.001 | 4 | ≡ 0.004 |
1.5 | ≡ 0.0015 | 4.5 | ≡ 0.0045 |
2 | ≡ 0.002 | 5 | ≡ 0.005 |
2.5 | ≡ 0.0025 | 5.5 | ≡ 0.0055 |
3 | ≡ 0.003 | 6 | ≡ 0.006 |
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 | attometers | fermtometers | attometers |
---|---|---|---|
1 | ≡ 1000 | 4 | ≡ 4000 |
1.5 | ≡ 1500 | 4.5 | ≡ 4500 |
2 | ≡ 2000 | 5 | ≡ 5000 |
2.5 | ≡ 2500 | 5.5 | ≡ 5500 |
3 | ≡ 3000 | 6 | ≡ 6000 |
attometers | fermtometers |
---|---|
1 | ≡ 0.001 |
1 000 | ≡ 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 …) |