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 |
x unit | 9,979,044,007.5841 xu | 19,958,088,015.168 xu | 29,937,132,022.752 xu | 39,916,176,030.336 xu | 49,895,220,037.92 xu | 59,874,264,045.504 xu | 69,853,308,053.089 xu | 79,832,352,060.673 xu | 89,811,396,068.257 xu | 99,790,440,075.841 xu | 109,769,484,083.42 xu | 119,748,528,091.01 xu | 129,727,572,098.59 xu | 139,706,616,106.18 xu | 149,685,660,113.76 xu | 159,664,704,121.35 xu | 169,643,748,128.93 xu | 179,622,792,136.51 xu | 189,601,836,144.1 xu | 199,580,880,151.68 xu | 209,559,924,159.27 xu | 219,538,968,166.85 xu | 229,518,012,174.43 xu | 239,497,056,182.02 xu | 249,476,100,189.6 xu | 259,455,144,197.19 xu | 269,434,188,204.77 xu | 279,413,232,212.35 xu | 289,392,276,219.94 xu | 299,371,320,227.52 xu | 309,350,364,235.11 xu | 319,329,408,242.69 xu | 329,308,452,250.27 xu | 339,287,496,257.86 xu | 349,266,540,265.44 xu | 359,245,584,273.03 xu | 369,224,628,280.61 xu | 379,203,672,288.19 xu | 389,182,716,295.78 xu | 399,161,760,303.36 xu | 409,140,804,310.95 xu | 419,119,848,318.53 xu | 429,098,892,326.12 xu | 439,077,936,333.7 xu | 449,056,980,341.28 xu | 459,036,024,348.87 xu | 469,015,068,356.45 xu | 478,994,112,364.04 xu | 488,973,156,371.62 xu | 498,952,200,379.2 xu | 508,931,244,386.79 xu | 518,910,288,394.37 xu | 528,889,332,401.96 xu | 538,868,376,409.54 xu | 548,847,420,417.12 xu | 558,826,464,424.71 xu | 568,805,508,432.29 xu | 578,784,552,439.88 xu | 588,763,596,447.46 xu | 598,742,640,455.04 xu | 608,721,684,462.63 xu | 618,700,728,470.21 xu | 628,679,772,477.8 xu | 638,658,816,485.38 xu | 648,637,860,492.96 xu | 658,616,904,500.55 xu | 668,595,948,508.13 xu | 678,574,992,515.72 xu | 688,554,036,523.3 xu | 698,533,080,530.89 xu | 708,512,124,538.47 xu | 718,491,168,546.05 xu | 728,470,212,553.64 xu | 738,449,256,561.22 xu | 748,428,300,568.81 xu | 758,407,344,576.39 xu | 768,386,388,583.97 xu | 778,365,432,591.56 xu | 788,344,476,599.14 xu | 798,323,520,606.73 xu | 808,302,564,614.31 xu | 818,281,608,621.89 xu | 828,260,652,629.48 xu | 838,239,696,637.06 xu | 848,218,740,644.65 xu | 858,197,784,652.23 xu | 868,176,828,659.81 xu | 878,155,872,667.4 xu | 888,134,916,674.98 xu | 898,113,960,682.57 xu | 908,093,004,690.15 xu | 918,072,048,697.73 xu | 928,051,092,705.32 xu | 938,030,136,712.9 xu | 948,009,180,720.49 xu | 957,988,224,728.07 xu | 967,967,268,735.66 xu | 977,946,312,743.24 xu | 987,925,356,750.82 xu | 997,904,400,758.41 xu |
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 | x units | millimeters | x units |
---|---|---|---|
1 | ≈ 9979044007.5841 | 4 | ≈ 39916176030.336 |
1.5 | ≈ 14968566011.376 | 4.5 | ≈ 44905698034.128 |
2 | ≈ 19958088015.168 | 5 | ≈ 49895220037.92 |
2.5 | ≈ 24947610018.96 | 5.5 | ≈ 54884742041.712 |
3 | ≈ 29937132022.752 | 6 | ≈ 59874264045.504 |
The x unit (symbol xu) is a unit of length approximately equal to 0.1 pm (10−13 m). It is used to quote the wavelength of X-rays and gamma rays.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
x unit | xu | ≈ 1.0021×10−13 m | ≈ 1.0021×10−13 m | Metric system Non-SI |
x units | millimeters | x units | millimeters |
---|---|---|---|
1 | ≈ 1.0021E-10 | 4 | ≈ 4.0084E-10 |
1.5 | ≈ 1.50315E-10 | 4.5 | ≈ 4.50945E-10 |
2 | ≈ 2.0042E-10 | 5 | ≈ 5.0105E-10 |
2.5 | ≈ 2.50525E-10 | 5.5 | ≈ 5.51155E-10 |
3 | ≈ 3.0063E-10 | 6 | ≈ 6.0126E-10 |
millimeters | x units |
---|---|
1 | ≈ 9,979,044,007.5841 |
1.0021 × 10-10 | ≈ 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 …) |