| 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) |
| ell | 0.0003500 ell | 0.0006999 ell | 0.0010499 ell | 0.0013998 ell | 0.0017498 ell | 0.0020997 ell | 0.0024497 ell | 0.0027997 ell | 0.0031496 ell | 0.0034996 ell | 0.0038495 ell | 0.0041995 ell | 0.0045494 ell | 0.0048994 ell | 0.0052493 ell | 0.0055993 ell | 0.0059493 ell | 0.0062992 ell | 0.0066492 ell | 0.0069991 ell | 0.0073491 ell | 0.0076990 ell | 0.0080490 ell | 0.0083990 ell | 0.0087489 ell | 0.0090989 ell | 0.0094488 ell | 0.0097988 ell | 0.0101487 ell | 0.0104987 ell | 0.0108486 ell | 0.0111986 ell | 0.0115486 ell | 0.0118985 ell | 0.0122485 ell | 0.0125984 ell | 0.0129484 ell | 0.0132983 ell | 0.0136483 ell | 0.0139983 ell | 0.0143482 ell | 0.0146982 ell | 0.0150481 ell | 0.0153981 ell | 0.0157480 ell | 0.0160980 ell | 0.0164479 ell | 0.0167979 ell | 0.0171479 ell | 0.0174978 ell | 0.0178478 ell | 0.0181977 ell | 0.0185477 ell | 0.0188976 ell | 0.0192476 ell | 0.0195976 ell | 0.0199475 ell | 0.0202975 ell | 0.0206474 ell | 0.0209974 ell | 0.0213473 ell | 0.0216973 ell | 0.0220472 ell | 0.0223972 ell | 0.0227472 ell | 0.0230971 ell | 0.0234471 ell | 0.0237970 ell | 0.0241470 ell | 0.0244969 ell | 0.0248469 ell | 0.0251969 ell | 0.0255468 ell | 0.0258968 ell | 0.0262467 ell | 0.0265967 ell | 0.0269466 ell | 0.0272966 ell | 0.0276465 ell | 0.0279965 ell | 0.0283465 ell | 0.0286964 ell | 0.0290464 ell | 0.0293963 ell | 0.0297463 ell | 0.0300962 ell | 0.0304462 ell | 0.0307962 ell | 0.0311461 ell | 0.0314961 ell | 0.0318460 ell | 0.0321960 ell | 0.0325459 ell | 0.0328959 ell | 0.0332458 ell | 0.0335958 ell | 0.0339458 ell | 0.0342957 ell | 0.0346457 ell | 0.0349956 ell |
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 | ell | metric inches | ell |
|---|---|---|---|
| 1 | = 0.00034995625546807 | 4 | = 0.0013998250218723 |
| 1.5 | = 0.0005249343832021 | 4.5 | = 0.0015748031496063 |
| 2 | = 0.00069991251093613 | 5 | = 0.0017497812773403 |
| 2.5 | = 0.00087489063867017 | 5.5 | = 0.0019247594050744 |
| 3 | = 0.0010498687664042 | 6 | = 0.0020997375328084 |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| ell | ell | ≡ 45 in (In England usually) | = 1.143 m | Other (Length) |
| ell | metric inches | ell | metric inches |
|---|---|---|---|
| 1 | = 2857.5 | 4 | = 11430 |
| 1.5 | = 4286.25 | 4.5 | = 12858.75 |
| 2 | = 5715 | 5 | = 14287.5 |
| 2.5 | = 7143.75 | 5.5 | = 15716.25 |
| 3 | = 8572.5 | 6 | = 17145 |
| metric inches | ell |
|---|---|
| 1 | = 0.0003500 |
| 2,857.5 | = 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 …) |