micron | 1 μm | 2 μm | 3 μm | 4 μm | 5 μm | 6 μm | 7 μm | 8 μm | 9 μm | 10 μm | 11 μm | 12 μm | 13 μm | 14 μm | 15 μm | 16 μm | 17 μm | 18 μm | 19 μm | 20 μm | 21 μm | 22 μm | 23 μm | 24 μm | 25 μm | 26 μm | 27 μm | 28 μm | 29 μm | 30 μm | 31 μm | 32 μm | 33 μm | 34 μm | 35 μm | 36 μm | 37 μm | 38 μm | 39 μm | 40 μm | 41 μm | 42 μm | 43 μm | 44 μm | 45 μm | 46 μm | 47 μm | 48 μm | 49 μm | 50 μm | 51 μm | 52 μm | 53 μm | 54 μm | 55 μm | 56 μm | 57 μm | 58 μm | 59 μm | 60 μm | 61 μm | 62 μm | 63 μm | 64 μm | 65 μm | 66 μm | 67 μm | 68 μm | 69 μm | 70 μm | 71 μm | 72 μm | 73 μm | 74 μm | 75 μm | 76 μm | 77 μm | 78 μm | 79 μm | 80 μm | 81 μm | 82 μm | 83 μm | 84 μm | 85 μm | 86 μm | 87 μm | 88 μm | 89 μm | 90 μm | 91 μm | 92 μm | 93 μm | 94 μm | 95 μm | 96 μm | 97 μm | 98 μm | 99 μm | 100 μm |
mil | 0.0393701 mil | 0.0787402 mil | 0.1181102 mil | 0.1574803 mil | 0.1968504 mil | 0.2362205 mil | 0.2755906 mil | 0.3149606 mil | 0.3543307 mil | 0.3937008 mil | 0.4330709 mil | 0.4724409 mil | 0.5118110 mil | 0.5511811 mil | 0.5905512 mil | 0.6299213 mil | 0.6692913 mil | 0.7086614 mil | 0.7480315 mil | 0.7874016 mil | 0.8267717 mil | 0.8661417 mil | 0.9055118 mil | 0.9448819 mil | 0.9842520 mil | 1.0236220 mil | 1.0629921 mil | 1.1023622 mil | 1.1417323 mil | 1.1811024 mil | 1.2204724 mil | 1.2598425 mil | 1.2992126 mil | 1.3385827 mil | 1.3779528 mil | 1.4173228 mil | 1.4566929 mil | 1.4960630 mil | 1.5354331 mil | 1.5748031 mil | 1.6141732 mil | 1.6535433 mil | 1.6929134 mil | 1.7322835 mil | 1.7716535 mil | 1.8110236 mil | 1.8503937 mil | 1.8897638 mil | 1.9291339 mil | 1.9685039 mil | 2.0078740 mil | 2.0472441 mil | 2.0866142 mil | 2.1259843 mil | 2.1653543 mil | 2.2047244 mil | 2.2440945 mil | 2.2834646 mil | 2.3228346 mil | 2.3622047 mil | 2.4015748 mil | 2.4409449 mil | 2.4803150 mil | 2.5196850 mil | 2.5590551 mil | 2.5984252 mil | 2.6377953 mil | 2.6771654 mil | 2.7165354 mil | 2.7559055 mil | 2.7952756 mil | 2.8346457 mil | 2.8740157 mil | 2.9133858 mil | 2.9527559 mil | 2.9921260 mil | 3.0314961 mil | 3.0708661 mil | 3.1102362 mil | 3.1496063 mil | 3.1889764 mil | 3.2283465 mil | 3.2677165 mil | 3.3070866 mil | 3.3464567 mil | 3.3858268 mil | 3.4251969 mil | 3.4645669 mil | 3.5039370 mil | 3.5433071 mil | 3.5826772 mil | 3.6220472 mil | 3.6614173 mil | 3.7007874 mil | 3.7401575 mil | 3.7795276 mil | 3.8188976 mil | 3.8582677 mil | 3.8976378 mil | 3.9370079 mil |
The micron (SI symbol: μm) or micrometer is an SI derived unit of length equaling 1×10−6 of a metre (SI standard prefix "micro-" = 10−6); that is, one millionth of a metre (or one thousandth of a millimetre, 0.001 mm, or about 0.000039 inch).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
micron | μm | ≡ 1×10−6 m | ≡ 1×10−6 m | Metric system Non-SI |
micron | mils | micron | mils |
---|---|---|---|
1 | ≡ 0.039370078740157 | 4 | ≡ 0.15748031496063 |
1.5 | ≡ 0.059055118110236 | 4.5 | ≡ 0.17716535433071 |
2 | ≡ 0.078740157480315 | 5 | ≡ 0.19685039370079 |
2.5 | ≡ 0.098425196850394 | 5.5 | ≡ 0.21653543307087 |
3 | ≡ 0.11811023622047 | 6 | ≡ 0.23622047244094 |
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 | micron | mils | micron |
---|---|---|---|
1 | ≡ 25.4 | 4 | ≡ 101.6 |
1.5 | ≡ 38.1 | 4.5 | ≡ 114.3 |
2 | ≡ 50.8 | 5 | ≡ 127 |
2.5 | ≡ 63.5 | 5.5 | ≡ 139.7 |
3 | ≡ 76.2 | 6 | ≡ 152.4 |
micron | mils |
---|---|
1 | ≡ 0.0393701 |
25.4 | ≡ 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 …) |