| 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) |
| foot, metric (short) | 0.0013333 smf | 0.0026667 smf | 0.004 smf | 0.0053333 smf | 0.0066667 smf | 0.008 smf | 0.0093333 smf | 0.0106667 smf | 0.012 smf | 0.0133333 smf | 0.0146667 smf | 0.016 smf | 0.0173333 smf | 0.0186667 smf | 0.02 smf | 0.0213333 smf | 0.0226667 smf | 0.024 smf | 0.0253333 smf | 0.0266667 smf | 0.028 smf | 0.0293333 smf | 0.0306667 smf | 0.032 smf | 0.0333333 smf | 0.0346667 smf | 0.036 smf | 0.0373333 smf | 0.0386667 smf | 0.04 smf | 0.0413333 smf | 0.0426667 smf | 0.044 smf | 0.0453333 smf | 0.0466667 smf | 0.048 smf | 0.0493333 smf | 0.0506667 smf | 0.052 smf | 0.0533333 smf | 0.0546667 smf | 0.056 smf | 0.0573333 smf | 0.0586667 smf | 0.06 smf | 0.0613333 smf | 0.0626667 smf | 0.064 smf | 0.0653333 smf | 0.0666667 smf | 0.068 smf | 0.0693333 smf | 0.0706667 smf | 0.072 smf | 0.0733333 smf | 0.0746667 smf | 0.076 smf | 0.0773333 smf | 0.0786667 smf | 0.08 smf | 0.0813333 smf | 0.0826667 smf | 0.084 smf | 0.0853333 smf | 0.0866667 smf | 0.088 smf | 0.0893333 smf | 0.0906667 smf | 0.092 smf | 0.0933333 smf | 0.0946667 smf | 0.096 smf | 0.0973333 smf | 0.0986667 smf | 0.1 smf | 0.1013333 smf | 0.1026667 smf | 0.104 smf | 0.1053333 smf | 0.1066667 smf | 0.108 smf | 0.1093333 smf | 0.1106667 smf | 0.112 smf | 0.1133333 smf | 0.1146667 smf | 0.116 smf | 0.1173333 smf | 0.1186667 smf | 0.12 smf | 0.1213333 smf | 0.1226667 smf | 0.124 smf | 0.1253333 smf | 0.1266667 smf | 0.128 smf | 0.1293333 smf | 0.1306667 smf | 0.132 smf | 0.1333333 smf |
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 | feet, metric (short) | metric inches | feet, metric (short) |
|---|---|---|---|
| 1 | = 0.0013333333333333 | 4 | = 0.0053333333333333 |
| 1.5 | = 0.002 | 4.5 | = 0.006 |
| 2 | = 0.0026666666666667 | 5 | = 0.0066666666666667 |
| 2.5 | = 0.0033333333333333 | 5.5 | = 0.0073333333333333 |
| 3 | = 0.004 | 6 | = 0.008 |
≡ 0.30 m
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| foot, metric (short) | smf | ≡ 0.30 m | ≡ 0.30 m | Metric system SI |
| feet, metric (short) | metric inches | feet, metric (short) | metric inches |
|---|---|---|---|
| 1 | = 750 | 4 | = 3000 |
| 1.5 | = 1125 | 4.5 | = 3375 |
| 2 | = 1500 | 5 | = 3750 |
| 2.5 | = 1875 | 5.5 | = 4125 |
| 3 | = 2250 | 6 | = 4500 |
| metric inches | feet, metric (short) |
|---|---|
| 1 | = 0.0013333 |
| 750 | = 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 …) |