fermtometer | 1 fm | 2 fm | 3 fm | 4 fm | 5 fm | 6 fm | 7 fm | 8 fm | 9 fm | 10 fm | 11 fm | 12 fm | 13 fm | 14 fm | 15 fm | 16 fm | 17 fm | 18 fm | 19 fm | 20 fm | 21 fm | 22 fm | 23 fm | 24 fm | 25 fm | 26 fm | 27 fm | 28 fm | 29 fm | 30 fm | 31 fm | 32 fm | 33 fm | 34 fm | 35 fm | 36 fm | 37 fm | 38 fm | 39 fm | 40 fm | 41 fm | 42 fm | 43 fm | 44 fm | 45 fm | 46 fm | 47 fm | 48 fm | 49 fm | 50 fm | 51 fm | 52 fm | 53 fm | 54 fm | 55 fm | 56 fm | 57 fm | 58 fm | 59 fm | 60 fm | 61 fm | 62 fm | 63 fm | 64 fm | 65 fm | 66 fm | 67 fm | 68 fm | 69 fm | 70 fm | 71 fm | 72 fm | 73 fm | 74 fm | 75 fm | 76 fm | 77 fm | 78 fm | 79 fm | 80 fm | 81 fm | 82 fm | 83 fm | 84 fm | 85 fm | 86 fm | 87 fm | 88 fm | 89 fm | 90 fm | 91 fm | 92 fm | 93 fm | 94 fm | 95 fm | 96 fm | 97 fm | 98 fm | 99 fm | 100 fm |
point (typography) | 2.8452756190039 × 10-12 pt | 5.6905512380079 × 10-12 pt | 8.5358268570118 × 10-12 pt | 1.1381102476016 × 10-11 pt | 1.422637809502 × 10-11 pt | 1.7071653714024 × 10-11 pt | 1.9916929333028 × 10-11 pt | 2.2762204952031 × 10-11 pt | 2.5607480571035 × 10-11 pt | 2.8452756190039 × 10-11 pt | 3.1298031809043 × 10-11 pt | 3.4143307428047 × 10-11 pt | 3.6988583047051 × 10-11 pt | 3.9833858666055 × 10-11 pt | 4.2679134285059 × 10-11 pt | 4.5524409904063 × 10-11 pt | 4.8369685523067 × 10-11 pt | 5.1214961142071 × 10-11 pt | 5.4060236761075 × 10-11 pt | 5.6905512380079 × 10-11 pt | 5.9750787999083 × 10-11 pt | 6.2596063618087 × 10-11 pt | 6.5441339237091 × 10-11 pt | 6.8286614856095 × 10-11 pt | 7.1131890475098 × 10-11 pt | 7.3977166094102 × 10-11 pt | 7.6822441713106 × 10-11 pt | 7.966771733211 × 10-11 pt | 8.2512992951114 × 10-11 pt | 8.5358268570118 × 10-11 pt | 8.8203544189122 × 10-11 pt | 9.1048819808126 × 10-11 pt | 9.389409542713 × 10-11 pt | 9.6739371046134 × 10-11 pt | 9.9584646665138 × 10-11 pt | 1.0242992228414 × 10-10 pt | 1.0527519790315 × 10-10 pt | 1.0812047352215 × 10-10 pt | 1.1096574914115 × 10-10 pt | 1.1381102476016 × 10-10 pt | 1.1665630037916 × 10-10 pt | 1.1950157599817 × 10-10 pt | 1.2234685161717 × 10-10 pt | 1.2519212723617 × 10-10 pt | 1.2803740285518 × 10-10 pt | 1.3088267847418 × 10-10 pt | 1.3372795409319 × 10-10 pt | 1.3657322971219 × 10-10 pt | 1.3941850533119 × 10-10 pt | 1.422637809502 × 10-10 pt | 1.451090565692 × 10-10 pt | 1.479543321882 × 10-10 pt | 1.5079960780721 × 10-10 pt | 1.5364488342621 × 10-10 pt | 1.5649015904522 × 10-10 pt | 1.5933543466422 × 10-10 pt | 1.6218071028322 × 10-10 pt | 1.6502598590223 × 10-10 pt | 1.6787126152123 × 10-10 pt | 1.7071653714024 × 10-10 pt | 1.7356181275924 × 10-10 pt | 1.7640708837824 × 10-10 pt | 1.7925236399725 × 10-10 pt | 1.8209763961625 × 10-10 pt | 1.8494291523526 × 10-10 pt | 1.8778819085426 × 10-10 pt | 1.9063346647326 × 10-10 pt | 1.9347874209227 × 10-10 pt | 1.9632401771127 × 10-10 pt | 1.9916929333028 × 10-10 pt | 2.0201456894928 × 10-10 pt | 2.0485984456828 × 10-10 pt | 2.0770512018729 × 10-10 pt | 2.1055039580629 × 10-10 pt | 2.133956714253 × 10-10 pt | 2.162409470443 × 10-10 pt | 2.190862226633 × 10-10 pt | 2.2193149828231 × 10-10 pt | 2.2477677390131 × 10-10 pt | 2.2762204952032 × 10-10 pt | 2.3046732513932 × 10-10 pt | 2.3331260075832 × 10-10 pt | 2.3615787637733 × 10-10 pt | 2.3900315199633 × 10-10 pt | 2.4184842761533 × 10-10 pt | 2.4469370323434 × 10-10 pt | 2.4753897885334 × 10-10 pt | 2.5038425447235 × 10-10 pt | 2.5322953009135 × 10-10 pt | 2.5607480571035 × 10-10 pt | 2.5892008132936 × 10-10 pt | 2.6176535694836 × 10-10 pt | 2.6461063256737 × 10-10 pt | 2.6745590818637 × 10-10 pt | 2.7030118380537 × 10-10 pt | 2.7314645942438 × 10-10 pt | 2.7599173504338 × 10-10 pt | 2.7883701066239 × 10-10 pt | 2.8168228628139 × 10-10 pt | 2.8452756190039 × 10-10 pt |
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 | points (typography) | fermtometers | points (typography) |
---|---|---|---|
1 | = 2.8452756190039E-12 | 4 | = 1.1381102476016E-11 |
1.5 | = 4.2679134285059E-12 | 4.5 | = 1.2803740285518E-11 |
2 | = 5.6905512380079E-12 | 5 | = 1.422637809502E-11 |
2.5 | = 7.1131890475098E-12 | 5.5 | = 1.5649015904522E-11 |
3 | = 8.5358268570118E-12 | 6 | = 1.7071653714024E-11 |
≡ 1⁄72.27 in
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (typography) | pt | ≡ 1⁄72.27 in | = 0.0003514598 m | Other (Length) |
points (typography) | fermtometers | points (typography) | fermtometers |
---|---|---|---|
1 | = 351459800000 | 4 | = 1405839200000 |
1.5 | = 527189700000 | 4.5 | = 1581569100000 |
2 | = 702919600000 | 5 | = 1757299000000 |
2.5 | = 878649500000 | 5.5 | = 1933028900000 |
3 | = 1054379400000 | 6 | = 2108758800000 |
fermtometers | points (typography) |
---|---|
1 | = 2.8452756190039 × 10-12 |
351 459 800 000 | = 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 …) |