mil | 1 mil | 2 mil | 3 mil | 4 mil | 5 mil | 6 mil | 7 mil | 8 mil | 9 mil | 10 mil | 11 mil | 12 mil | 13 mil | 14 mil | 15 mil | 16 mil | 17 mil | 18 mil | 19 mil | 20 mil | 21 mil | 22 mil | 23 mil | 24 mil | 25 mil | 26 mil | 27 mil | 28 mil | 29 mil | 30 mil | 31 mil | 32 mil | 33 mil | 34 mil | 35 mil | 36 mil | 37 mil | 38 mil | 39 mil | 40 mil | 41 mil | 42 mil | 43 mil | 44 mil | 45 mil | 46 mil | 47 mil | 48 mil | 49 mil | 50 mil | 51 mil | 52 mil | 53 mil | 54 mil | 55 mil | 56 mil | 57 mil | 58 mil | 59 mil | 60 mil | 61 mil | 62 mil | 63 mil | 64 mil | 65 mil | 66 mil | 67 mil | 68 mil | 69 mil | 70 mil | 71 mil | 72 mil | 73 mil | 74 mil | 75 mil | 76 mil | 77 mil | 78 mil | 79 mil | 80 mil | 81 mil | 82 mil | 83 mil | 84 mil | 85 mil | 86 mil | 87 mil | 88 mil | 89 mil | 90 mil | 91 mil | 92 mil | 93 mil | 94 mil | 95 mil | 96 mil | 97 mil | 98 mil | 99 mil | 100 mil |
fermi | 25 400 000 000 fm | 50 800 000 000 fm | 76 200 000 000 fm | 101 600 000 000 fm | 127 000 000 000 fm | 152 400 000 000 fm | 177 800 000 000 fm | 203 200 000 000 fm | 228 600 000 000 fm | 254 000 000 000 fm | 279 400 000 000 fm | 304 800 000 000 fm | 330 200 000 000 fm | 355 600 000 000 fm | 381 000 000 000 fm | 406 400 000 000 fm | 431 800 000 000 fm | 457 200 000 000 fm | 482 600 000 000 fm | 508 000 000 000 fm | 533 400 000 000 fm | 558 800 000 000 fm | 584 200 000 000 fm | 609 600 000 000 fm | 635 000 000 000 fm | 660 400 000 000 fm | 685 800 000 000 fm | 711 200 000 000 fm | 736 600 000 000 fm | 762 000 000 000 fm | 787 400 000 000 fm | 812 800 000 000 fm | 838 200 000 000 fm | 863 600 000 000 fm | 889 000 000 000 fm | 914 400 000 000 fm | 939 800 000 000 fm | 965 200 000 000 fm | 990 600 000 000 fm | 1 016 000 000 000 fm | 1 041 400 000 000 fm | 1 066 800 000 000 fm | 1 092 200 000 000 fm | 1 117 600 000 000 fm | 1 143 000 000 000 fm | 1 168 400 000 000 fm | 1 193 800 000 000 fm | 1 219 200 000 000 fm | 1 244 600 000 000 fm | 1 270 000 000 000 fm | 1 295 400 000 000 fm | 1 320 800 000 000 fm | 1 346 200 000 000 fm | 1 371 600 000 000 fm | 1 397 000 000 000 fm | 1 422 400 000 000 fm | 1 447 800 000 000 fm | 1 473 200 000 000 fm | 1 498 600 000 000 fm | 1 524 000 000 000 fm | 1 549 400 000 000 fm | 1 574 800 000 000 fm | 1 600 200 000 000 fm | 1 625 600 000 000 fm | 1 651 000 000 000 fm | 1 676 400 000 000 fm | 1 701 800 000 000 fm | 1 727 200 000 000 fm | 1 752 600 000 000 fm | 1 778 000 000 000 fm | 1 803 400 000 000 fm | 1 828 800 000 000 fm | 1 854 200 000 000 fm | 1 879 600 000 000 fm | 1 905 000 000 000 fm | 1 930 400 000 000 fm | 1 955 800 000 000 fm | 1 981 200 000 000 fm | 2 006 600 000 000 fm | 2 032 000 000 000 fm | 2 057 400 000 000 fm | 2 082 800 000 000 fm | 2 108 200 000 000 fm | 2 133 600 000 000 fm | 2 159 000 000 000 fm | 2 184 400 000 000 fm | 2 209 800 000 000 fm | 2 235 200 000 000 fm | 2 260 600 000 000 fm | 2 286 000 000 000 fm | 2 311 400 000 000 fm | 2 336 800 000 000 fm | 2 362 200 000 000 fm | 2 387 600 000 000 fm | 2 413 000 000 000 fm | 2 438 400 000 000 fm | 2 463 800 000 000 fm | 2 489 200 000 000 fm | 2 514 600 000 000 fm | 2 540 000 000 000 fm |
A thousandth of an inch is a derived unit of length in an inch-based system of units. Equal to 0.001 inches, it is normally referred to as a thou /ˈθaʊ/, a thousandth, or (particularly in the United States) a mil.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
mil | mil | ≡ 1×10−3 in | ≡ 2.54×10−5 m | Imperial/US |
mils | fermi | mils | fermi |
---|---|---|---|
1 | ≡ 25400000000 | 4 | ≡ 101600000000 |
1.5 | ≡ 38100000000 | 4.5 | ≡ 114300000000 |
2 | ≡ 50800000000 | 5 | ≡ 127000000000 |
2.5 | ≡ 63500000000 | 5.5 | ≡ 139700000000 |
3 | ≡ 76200000000 | 6 | ≡ 152400000000 |
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 |
---|---|---|---|---|
fermi | fm | ≡ 1×10−15 m | ≡ 1×10−15 m | Metric system Non-SI |
fermi | mils | fermi | mils |
---|---|---|---|
1 | ≡ 3.9370078740157E-11 | 4 | ≡ 1.5748031496063E-10 |
1.5 | ≡ 5.9055118110236E-11 | 4.5 | ≡ 1.7716535433071E-10 |
2 | ≡ 7.8740157480315E-11 | 5 | ≡ 1.9685039370079E-10 |
2.5 | ≡ 9.8425196850394E-11 | 5.5 | ≡ 2.1653543307087E-10 |
3 | ≡ 1.1811023622047E-10 | 6 | ≡ 2.3622047244094E-10 |
mils | fermi |
---|---|
1 | ≡ 25 400 000 000 |
3.9370078740157 × 10-11 | ≡ 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 …) |