millimeter | 1 mm | 2 mm | 3 mm | 4 mm | 5 mm | 6 mm | 7 mm | 8 mm | 9 mm | 10 mm | 11 mm | 12 mm | 13 mm | 14 mm | 15 mm | 16 mm | 17 mm | 18 mm | 19 mm | 20 mm | 21 mm | 22 mm | 23 mm | 24 mm | 25 mm | 26 mm | 27 mm | 28 mm | 29 mm | 30 mm | 31 mm | 32 mm | 33 mm | 34 mm | 35 mm | 36 mm | 37 mm | 38 mm | 39 mm | 40 mm | 41 mm | 42 mm | 43 mm | 44 mm | 45 mm | 46 mm | 47 mm | 48 mm | 49 mm | 50 mm | 51 mm | 52 mm | 53 mm | 54 mm | 55 mm | 56 mm | 57 mm | 58 mm | 59 mm | 60 mm | 61 mm | 62 mm | 63 mm | 64 mm | 65 mm | 66 mm | 67 mm | 68 mm | 69 mm | 70 mm | 71 mm | 72 mm | 73 mm | 74 mm | 75 mm | 76 mm | 77 mm | 78 mm | 79 mm | 80 mm | 81 mm | 82 mm | 83 mm | 84 mm | 85 mm | 86 mm | 87 mm | 88 mm | 89 mm | 90 mm | 91 mm | 92 mm | 93 mm | 94 mm | 95 mm | 96 mm | 97 mm | 98 mm | 99 mm | 100 mm |
foot, metric | 0.0031623 mf | 0.0063246 mf | 0.0094868 mf | 0.0126491 mf | 0.0158114 mf | 0.0189737 mf | 0.0221359 mf | 0.0252982 mf | 0.0284605 mf | 0.0316228 mf | 0.0347851 mf | 0.0379473 mf | 0.0411096 mf | 0.0442719 mf | 0.0474342 mf | 0.0505964 mf | 0.0537587 mf | 0.0569210 mf | 0.0600833 mf | 0.0632456 mf | 0.0664078 mf | 0.0695701 mf | 0.0727324 mf | 0.0758947 mf | 0.0790569 mf | 0.0822192 mf | 0.0853815 mf | 0.0885438 mf | 0.0917061 mf | 0.0948683 mf | 0.0980306 mf | 0.1011929 mf | 0.1043552 mf | 0.1075174 mf | 0.1106797 mf | 0.1138420 mf | 0.1170043 mf | 0.1201666 mf | 0.1233288 mf | 0.1264911 mf | 0.1296534 mf | 0.1328157 mf | 0.1359779 mf | 0.1391402 mf | 0.1423025 mf | 0.1454648 mf | 0.1486271 mf | 0.1517893 mf | 0.1549516 mf | 0.1581139 mf | 0.1612762 mf | 0.1644384 mf | 0.1676007 mf | 0.1707630 mf | 0.1739253 mf | 0.1770875 mf | 0.1802498 mf | 0.1834121 mf | 0.1865744 mf | 0.1897367 mf | 0.1928989 mf | 0.1960612 mf | 0.1992235 mf | 0.2023858 mf | 0.2055480 mf | 0.2087103 mf | 0.2118726 mf | 0.2150349 mf | 0.2181972 mf | 0.2213594 mf | 0.2245217 mf | 0.2276840 mf | 0.2308463 mf | 0.2340085 mf | 0.2371708 mf | 0.2403331 mf | 0.2434954 mf | 0.2466577 mf | 0.2498199 mf | 0.2529822 mf | 0.2561445 mf | 0.2593068 mf | 0.2624690 mf | 0.2656313 mf | 0.2687936 mf | 0.2719559 mf | 0.2751182 mf | 0.2782804 mf | 0.2814427 mf | 0.2846050 mf | 0.2877673 mf | 0.2909295 mf | 0.2940918 mf | 0.2972541 mf | 0.3004164 mf | 0.3035787 mf | 0.3067409 mf | 0.3099032 mf | 0.3130655 mf | 0.3162278 mf |
The millimetre (International spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore there are thousand millimetres in a metre. There are ten millimetres in a centimetre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
millimeter | mm | ≡ 1×10-3 m ≡ 0.001 m | ≡ 1×10-3 m ≡ 0.001 m | Metric system SI |
millimeters | feet, metric | millimeters | feet, metric |
---|---|---|---|
1 | ≈ 0.0031622776601368 | 4 | ≈ 0.012649110640547 |
1.5 | ≈ 0.0047434164902051 | 4.5 | ≈ 0.014230249470615 |
2 | ≈ 0.0063245553202735 | 5 | ≈ 0.015811388300684 |
2.5 | ≈ 0.0079056941503419 | 5.5 | ≈ 0.017392527130752 |
3 | ≈ 0.0094868329804103 | 6 | ≈ 0.018973665960821 |
A metric foot is a nickname for a preferred number length of 3 basic modules (3 M), or 30 centimetres (11.811 in). The 30 cm metric ruler was a similar length to the traditional imperial one-foot ruler. A metric foot is 4.8 millimetres (0.189 in) shorter than an imperial foot.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot, metric | mf | ≡ √ 1⁄10 m | ≈ 0.31622776602 m | Metric system Non-SI |
feet, metric | millimeters | feet, metric | millimeters |
---|---|---|---|
1 | ≈ 316.22776602 | 4 | ≈ 1264.91106408 |
1.5 | ≈ 474.34164903 | 4.5 | ≈ 1423.02494709 |
2 | ≈ 632.45553204 | 5 | ≈ 1581.1388301 |
2.5 | ≈ 790.56941505 | 5.5 | ≈ 1739.25271311 |
3 | ≈ 948.68329806 | 6 | ≈ 1897.36659612 |
millimeters | feet, metric |
---|---|
1 | ≈ 0.0031623 |
316.2277660 | ≈ 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 …) |