| 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 |
| metric inch | 12 573 in (metric) | 25 146 in (metric) | 37 719 in (metric) | 50 292 in (metric) | 62 865 in (metric) | 75 438 in (metric) | 88 011 in (metric) | 100 584 in (metric) | 113 157 in (metric) | 125 730 in (metric) | 138 303 in (metric) | 150 876 in (metric) | 163 449 in (metric) | 176 022 in (metric) | 188 595 in (metric) | 201 168 in (metric) | 213 741 in (metric) | 226 314 in (metric) | 238 887 in (metric) | 251 460 in (metric) | 264 033 in (metric) | 276 606 in (metric) | 289 179 in (metric) | 301 752 in (metric) | 314 325 in (metric) | 326 898 in (metric) | 339 471 in (metric) | 352 044 in (metric) | 364 617 in (metric) | 377 190 in (metric) | 389 763 in (metric) | 402 336 in (metric) | 414 909 in (metric) | 427 482 in (metric) | 440 055 in (metric) | 452 628 in (metric) | 465 201 in (metric) | 477 774 in (metric) | 490 347 in (metric) | 502 920 in (metric) | 515 493 in (metric) | 528 066 in (metric) | 540 639 in (metric) | 553 212 in (metric) | 565 785 in (metric) | 578 358 in (metric) | 590 931 in (metric) | 603 504 in (metric) | 616 077 in (metric) | 628 650 in (metric) | 641 223 in (metric) | 653 796 in (metric) | 666 369 in (metric) | 678 942 in (metric) | 691 515 in (metric) | 704 088 in (metric) | 716 661 in (metric) | 729 234 in (metric) | 741 807 in (metric) | 754 380 in (metric) | 766 953 in (metric) | 779 526 in (metric) | 792 099 in (metric) | 804 672 in (metric) | 817 245 in (metric) | 829 818 in (metric) | 842 391 in (metric) | 854 964 in (metric) | 867 537 in (metric) | 880 110 in (metric) | 892 683 in (metric) | 905 256 in (metric) | 917 829 in (metric) | 930 402 in (metric) | 942 975 in (metric) | 955 548 in (metric) | 968 121 in (metric) | 980 694 in (metric) | 993 267 in (metric) | 1 005 840 in (metric) | 1 018 413 in (metric) | 1 030 986 in (metric) | 1 043 559 in (metric) | 1 056 132 in (metric) | 1 068 705 in (metric) | 1 081 278 in (metric) | 1 093 851 in (metric) | 1 106 424 in (metric) | 1 118 997 in (metric) | 1 131 570 in (metric) | 1 144 143 in (metric) | 1 156 716 in (metric) | 1 169 289 in (metric) | 1 181 862 in (metric) | 1 194 435 in (metric) | 1 207 008 in (metric) | 1 219 581 in (metric) | 1 232 154 in (metric) | 1 244 727 in (metric) | 1 257 300 in (metric) |
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 | metric inches | rods | metric inches |
|---|---|---|---|
| 1 | = 12573 | 4 | = 50292 |
| 1.5 | = 18859.5 | 4.5 | = 56578.5 |
| 2 | = 25146 | 5 | = 62865 |
| 2.5 | = 31432.5 | 5.5 | = 69151.5 |
| 3 | = 37719 | 6 | = 75438 |
A metric inch is a nickname for a preferred 1⁄4 subdivision of an ISO 2848 basic module, or 1⁄12 of a metric foot measuring 25 millimetres (0.984 in). A metric inch is 0.4 millimetres (0.016 in) shorter than an inch.
The term was similarly used to refer to the historical Soviet Bloc practice of spacing integrated circuit pins at 1⁄10 of a 25 mm "metric inch" length, instead of the western practice of 1⁄10 of an imperial inch.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| metric inch | in (metric) | = 0.016 in | = 0.0004 m | Metric system SI |
| metric inches | rods | metric inches | rods |
|---|---|---|---|
| 1 | = 7.9535512606379E-5 | 4 | = 0.00031814205042551 |
| 1.5 | = 0.00011930326890957 | 4.5 | = 0.0003579098067287 |
| 2 | = 0.00015907102521276 | 5 | = 0.00039767756303189 |
| 2.5 | = 0.00019883878151595 | 5.5 | = 0.00043744531933508 |
| 3 | = 0.00023860653781914 | 6 | = 0.00047721307563827 |
| rods | metric inches |
|---|---|
| 1 | = 12 573 |
| 7.9535512606379 × 10-5 | = 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 …) |