| 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) |
| finger (cloth) | 0.0034996 finger (cloth) | 0.0069991 finger (cloth) | 0.0104987 finger (cloth) | 0.0139983 finger (cloth) | 0.0174978 finger (cloth) | 0.0209974 finger (cloth) | 0.0244969 finger (cloth) | 0.0279965 finger (cloth) | 0.0314961 finger (cloth) | 0.0349956 finger (cloth) | 0.0384952 finger (cloth) | 0.0419948 finger (cloth) | 0.0454943 finger (cloth) | 0.0489939 finger (cloth) | 0.0524934 finger (cloth) | 0.0559930 finger (cloth) | 0.0594926 finger (cloth) | 0.0629921 finger (cloth) | 0.0664917 finger (cloth) | 0.0699913 finger (cloth) | 0.0734908 finger (cloth) | 0.0769904 finger (cloth) | 0.0804899 finger (cloth) | 0.0839895 finger (cloth) | 0.0874891 finger (cloth) | 0.0909886 finger (cloth) | 0.0944882 finger (cloth) | 0.0979878 finger (cloth) | 0.1014873 finger (cloth) | 0.1049869 finger (cloth) | 0.1084864 finger (cloth) | 0.1119860 finger (cloth) | 0.1154856 finger (cloth) | 0.1189851 finger (cloth) | 0.1224847 finger (cloth) | 0.1259843 finger (cloth) | 0.1294838 finger (cloth) | 0.1329834 finger (cloth) | 0.1364829 finger (cloth) | 0.1399825 finger (cloth) | 0.1434821 finger (cloth) | 0.1469816 finger (cloth) | 0.1504812 finger (cloth) | 0.1539808 finger (cloth) | 0.1574803 finger (cloth) | 0.1609799 finger (cloth) | 0.1644794 finger (cloth) | 0.1679790 finger (cloth) | 0.1714786 finger (cloth) | 0.1749781 finger (cloth) | 0.1784777 finger (cloth) | 0.1819773 finger (cloth) | 0.1854768 finger (cloth) | 0.1889764 finger (cloth) | 0.1924759 finger (cloth) | 0.1959755 finger (cloth) | 0.1994751 finger (cloth) | 0.2029746 finger (cloth) | 0.2064742 finger (cloth) | 0.2099738 finger (cloth) | 0.2134733 finger (cloth) | 0.2169729 finger (cloth) | 0.2204724 finger (cloth) | 0.2239720 finger (cloth) | 0.2274716 finger (cloth) | 0.2309711 finger (cloth) | 0.2344707 finger (cloth) | 0.2379703 finger (cloth) | 0.2414698 finger (cloth) | 0.2449694 finger (cloth) | 0.2484689 finger (cloth) | 0.2519685 finger (cloth) | 0.2554681 finger (cloth) | 0.2589676 finger (cloth) | 0.2624672 finger (cloth) | 0.2659668 finger (cloth) | 0.2694663 finger (cloth) | 0.2729659 finger (cloth) | 0.2764654 finger (cloth) | 0.2799650 finger (cloth) | 0.2834646 finger (cloth) | 0.2869641 finger (cloth) | 0.2904637 finger (cloth) | 0.2939633 finger (cloth) | 0.2974628 finger (cloth) | 0.3009624 finger (cloth) | 0.3044619 finger (cloth) | 0.3079615 finger (cloth) | 0.3114611 finger (cloth) | 0.3149606 finger (cloth) | 0.3184602 finger (cloth) | 0.3219598 finger (cloth) | 0.3254593 finger (cloth) | 0.3289589 finger (cloth) | 0.3324584 finger (cloth) | 0.3359580 finger (cloth) | 0.3394576 finger (cloth) | 0.3429571 finger (cloth) | 0.3464567 finger (cloth) | 0.3499563 finger (cloth) |
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 | finger (cloth) | metric inches | finger (cloth) |
|---|---|---|---|
| 1 | = 0.0034995625546807 | 4 | = 0.013998250218723 |
| 1.5 | = 0.005249343832021 | 4.5 | = 0.015748031496063 |
| 2 | = 0.0069991251093613 | 5 | = 0.017497812773403 |
| 2.5 | = 0.0087489063867017 | 5.5 | = 0.019247594050744 |
| 3 | = 0.010498687664042 | 6 | = 0.020997375328084 |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| finger (cloth) | ≡ 4 ⁄12 in | = 0.1143 m | Other (Length) |
| finger (cloth) | metric inches | finger (cloth) | metric inches |
|---|---|---|---|
| 1 | = 285.75 | 4 | = 1143 |
| 1.5 | = 428.625 | 4.5 | = 1285.875 |
| 2 | = 571.5 | 5 | = 1428.75 |
| 2.5 | = 714.375 | 5.5 | = 1571.625 |
| 3 | = 857.25 | 6 | = 1714.5 |
| metric inches | finger (cloth) |
|---|---|
| 1 | = 0.0034996 |
| 285.75 | = 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 …) |