| metric inch | 1 in (metric) | 2 in (metric) | 3 in (metric) | 4 in (metric) | 5 in (metric) | 6 in (metric) | 7 in (metric) | 8 in (metric) | 9 in (metric) | 10 in (metric) | 11 in (metric) | 12 in (metric) | 13 in (metric) | 14 in (metric) | 15 in (metric) | 16 in (metric) | 17 in (metric) | 18 in (metric) | 19 in (metric) | 20 in (metric) | 21 in (metric) | 22 in (metric) | 23 in (metric) | 24 in (metric) | 25 in (metric) | 26 in (metric) | 27 in (metric) | 28 in (metric) | 29 in (metric) | 30 in (metric) | 31 in (metric) | 32 in (metric) | 33 in (metric) | 34 in (metric) | 35 in (metric) | 36 in (metric) | 37 in (metric) | 38 in (metric) | 39 in (metric) | 40 in (metric) | 41 in (metric) | 42 in (metric) | 43 in (metric) | 44 in (metric) | 45 in (metric) | 46 in (metric) | 47 in (metric) | 48 in (metric) | 49 in (metric) | 50 in (metric) | 51 in (metric) | 52 in (metric) | 53 in (metric) | 54 in (metric) | 55 in (metric) | 56 in (metric) | 57 in (metric) | 58 in (metric) | 59 in (metric) | 60 in (metric) | 61 in (metric) | 62 in (metric) | 63 in (metric) | 64 in (metric) | 65 in (metric) | 66 in (metric) | 67 in (metric) | 68 in (metric) | 69 in (metric) | 70 in (metric) | 71 in (metric) | 72 in (metric) | 73 in (metric) | 74 in (metric) | 75 in (metric) | 76 in (metric) | 77 in (metric) | 78 in (metric) | 79 in (metric) | 80 in (metric) | 81 in (metric) | 82 in (metric) | 83 in (metric) | 84 in (metric) | 85 in (metric) | 86 in (metric) | 87 in (metric) | 88 in (metric) | 89 in (metric) | 90 in (metric) | 91 in (metric) | 92 in (metric) | 93 in (metric) | 94 in (metric) | 95 in (metric) | 96 in (metric) | 97 in (metric) | 98 in (metric) | 99 in (metric) | 100 in (metric) |
| rod | 7.9535512606379 × 10-5 rd | 0.0001591 rd | 0.0002386 rd | 0.0003181 rd | 0.0003977 rd | 0.0004772 rd | 0.0005567 rd | 0.0006363 rd | 0.0007158 rd | 0.0007954 rd | 0.0008749 rd | 0.0009544 rd | 0.0010340 rd | 0.0011135 rd | 0.0011930 rd | 0.0012726 rd | 0.0013521 rd | 0.0014316 rd | 0.0015112 rd | 0.0015907 rd | 0.0016702 rd | 0.0017498 rd | 0.0018293 rd | 0.0019089 rd | 0.0019884 rd | 0.0020679 rd | 0.0021475 rd | 0.0022270 rd | 0.0023065 rd | 0.0023861 rd | 0.0024656 rd | 0.0025451 rd | 0.0026247 rd | 0.0027042 rd | 0.0027837 rd | 0.0028633 rd | 0.0029428 rd | 0.0030223 rd | 0.0031019 rd | 0.0031814 rd | 0.0032610 rd | 0.0033405 rd | 0.0034200 rd | 0.0034996 rd | 0.0035791 rd | 0.0036586 rd | 0.0037382 rd | 0.0038177 rd | 0.0038972 rd | 0.0039768 rd | 0.0040563 rd | 0.0041358 rd | 0.0042154 rd | 0.0042949 rd | 0.0043745 rd | 0.0044540 rd | 0.0045335 rd | 0.0046131 rd | 0.0046926 rd | 0.0047721 rd | 0.0048517 rd | 0.0049312 rd | 0.0050107 rd | 0.0050903 rd | 0.0051698 rd | 0.0052493 rd | 0.0053289 rd | 0.0054084 rd | 0.0054880 rd | 0.0055675 rd | 0.0056470 rd | 0.0057266 rd | 0.0058061 rd | 0.0058856 rd | 0.0059652 rd | 0.0060447 rd | 0.0061242 rd | 0.0062038 rd | 0.0062833 rd | 0.0063628 rd | 0.0064424 rd | 0.0065219 rd | 0.0066014 rd | 0.0066810 rd | 0.0067605 rd | 0.0068401 rd | 0.0069196 rd | 0.0069991 rd | 0.0070787 rd | 0.0071582 rd | 0.0072377 rd | 0.0073173 rd | 0.0073968 rd | 0.0074763 rd | 0.0075559 rd | 0.0076354 rd | 0.0077149 rd | 0.0077945 rd | 0.0078740 rd | 0.0079536 rd |
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 |
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 |
| metric inches | rods |
|---|---|
| 1 | = 7.9535512606379 × 10-5 |
| 12 573 | = 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 …) |