| rod | 1 rd | 2 rd | 3 rd | 4 rd | 5 rd | 6 rd | 7 rd | 8 rd | 9 rd | 10 rd | 11 rd | 12 rd | 13 rd | 14 rd | 15 rd | 16 rd | 17 rd | 18 rd | 19 rd | 20 rd | 21 rd | 22 rd | 23 rd | 24 rd | 25 rd | 26 rd | 27 rd | 28 rd | 29 rd | 30 rd | 31 rd | 32 rd | 33 rd | 34 rd | 35 rd | 36 rd | 37 rd | 38 rd | 39 rd | 40 rd | 41 rd | 42 rd | 43 rd | 44 rd | 45 rd | 46 rd | 47 rd | 48 rd | 49 rd | 50 rd | 51 rd | 52 rd | 53 rd | 54 rd | 55 rd | 56 rd | 57 rd | 58 rd | 59 rd | 60 rd | 61 rd | 62 rd | 63 rd | 64 rd | 65 rd | 66 rd | 67 rd | 68 rd | 69 rd | 70 rd | 71 rd | 72 rd | 73 rd | 74 rd | 75 rd | 76 rd | 77 rd | 78 rd | 79 rd | 80 rd | 81 rd | 82 rd | 83 rd | 84 rd | 85 rd | 86 rd | 87 rd | 88 rd | 89 rd | 90 rd | 91 rd | 92 rd | 93 rd | 94 rd | 95 rd | 96 rd | 97 rd | 98 rd | 99 rd | 100 rd |
| millimeter | 5,029.2 mm | 10,058.4 mm | 15,087.6 mm | 20,116.8 mm | 25 146 mm | 30,175.2 mm | 35,204.4 mm | 40,233.6 mm | 45,262.8 mm | 50 292 mm | 55,321.2 mm | 60,350.4 mm | 65,379.6 mm | 70,408.8 mm | 75 438 mm | 80,467.2 mm | 85,496.4 mm | 90,525.6 mm | 95,554.8 mm | 100 584 mm | 105,613.2 mm | 110,642.4 mm | 115,671.6 mm | 120,700.8 mm | 125 730 mm | 130,759.2 mm | 135,788.4 mm | 140,817.6 mm | 145,846.8 mm | 150 876 mm | 155,905.2 mm | 160,934.4 mm | 165,963.6 mm | 170,992.8 mm | 176 022 mm | 181,051.2 mm | 186,080.4 mm | 191,109.6 mm | 196,138.8 mm | 201 168 mm | 206,197.2 mm | 211,226.4 mm | 216,255.6 mm | 221,284.8 mm | 226 314 mm | 231,343.2 mm | 236,372.4 mm | 241,401.6 mm | 246,430.8 mm | 251 460 mm | 256,489.2 mm | 261,518.4 mm | 266,547.6 mm | 271,576.8 mm | 276 606 mm | 281,635.2 mm | 286,664.4 mm | 291,693.6 mm | 296,722.8 mm | 301 752 mm | 306,781.2 mm | 311,810.4 mm | 316,839.6 mm | 321,868.8 mm | 326 898 mm | 331,927.2 mm | 336,956.4 mm | 341,985.6 mm | 347,014.8 mm | 352 044 mm | 357,073.2 mm | 362,102.4 mm | 367,131.6 mm | 372,160.8 mm | 377 190 mm | 382,219.2 mm | 387,248.4 mm | 392,277.6 mm | 397,306.8 mm | 402 336 mm | 407,365.2 mm | 412,394.4 mm | 417,423.6 mm | 422,452.8 mm | 427 482 mm | 432,511.2 mm | 437,540.4 mm | 442,569.6 mm | 447,598.8 mm | 452 628 mm | 457,657.2 mm | 462,686.4 mm | 467,715.6 mm | 472,744.8 mm | 477 774 mm | 482,803.2 mm | 487,832.4 mm | 492,861.6 mm | 497,890.8 mm | 502 920 mm |
The rod or perch or pole is a surveyors tool and unit of length equal to 5 1⁄2 yards, 16 1⁄2 feet, 1⁄320 of a statute mile or one-fourth of a surveyor's chain and 5.0292 meters.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| rod | rd | ≡ 16 1⁄2 ft | = 5.0292 m | Imperial/US |
| rods | millimeters | rods | millimeters |
|---|---|---|---|
| 1 | = 5029.2 | 4 | = 20116.8 |
| 1.5 | = 7543.8 | 4.5 | = 22631.4 |
| 2 | = 10058.4 | 5 | = 25146 |
| 2.5 | = 12573 | 5.5 | = 27660.6 |
| 3 | = 15087.6 | 6 | = 30175.2 |
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 | rods | millimeters | rods |
|---|---|---|---|
| 1 | = 0.00019883878151595 | 4 | = 0.00079535512606379 |
| 1.5 | = 0.00029825817227392 | 4.5 | = 0.00089477451682176 |
| 2 | = 0.00039767756303189 | 5 | = 0.00099419390757973 |
| 2.5 | = 0.00049709695378987 | 5.5 | = 0.0010936132983377 |
| 3 | = 0.00059651634454784 | 6 | = 0.0011930326890957 |
| rods | millimeters |
|---|---|
| 1 | = 5,029.2 |
| 0.0001988 | = 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 …) |