| barleycorn | 1 barleycorn | 2 barleycorn | 3 barleycorn | 4 barleycorn | 5 barleycorn | 6 barleycorn | 7 barleycorn | 8 barleycorn | 9 barleycorn | 10 barleycorn | 11 barleycorn | 12 barleycorn | 13 barleycorn | 14 barleycorn | 15 barleycorn | 16 barleycorn | 17 barleycorn | 18 barleycorn | 19 barleycorn | 20 barleycorn | 21 barleycorn | 22 barleycorn | 23 barleycorn | 24 barleycorn | 25 barleycorn | 26 barleycorn | 27 barleycorn | 28 barleycorn | 29 barleycorn | 30 barleycorn | 31 barleycorn | 32 barleycorn | 33 barleycorn | 34 barleycorn | 35 barleycorn | 36 barleycorn | 37 barleycorn | 38 barleycorn | 39 barleycorn | 40 barleycorn | 41 barleycorn | 42 barleycorn | 43 barleycorn | 44 barleycorn | 45 barleycorn | 46 barleycorn | 47 barleycorn | 48 barleycorn | 49 barleycorn | 50 barleycorn | 51 barleycorn | 52 barleycorn | 53 barleycorn | 54 barleycorn | 55 barleycorn | 56 barleycorn | 57 barleycorn | 58 barleycorn | 59 barleycorn | 60 barleycorn | 61 barleycorn | 62 barleycorn | 63 barleycorn | 64 barleycorn | 65 barleycorn | 66 barleycorn | 67 barleycorn | 68 barleycorn | 69 barleycorn | 70 barleycorn | 71 barleycorn | 72 barleycorn | 73 barleycorn | 74 barleycorn | 75 barleycorn | 76 barleycorn | 77 barleycorn | 78 barleycorn | 79 barleycorn | 80 barleycorn | 81 barleycorn | 82 barleycorn | 83 barleycorn | 84 barleycorn | 85 barleycorn | 86 barleycorn | 87 barleycorn | 88 barleycorn | 89 barleycorn | 90 barleycorn | 91 barleycorn | 92 barleycorn | 93 barleycorn | 94 barleycorn | 95 barleycorn | 96 barleycorn | 97 barleycorn | 98 barleycorn | 99 barleycorn | 100 barleycorn |
| metric inch | 21.15 in (metric) | 42.3 in (metric) | 63.45 in (metric) | 84.6 in (metric) | 105.75 in (metric) | 126.9 in (metric) | 148.05 in (metric) | 169.2 in (metric) | 190.35 in (metric) | 211.5 in (metric) | 232.65 in (metric) | 253.8 in (metric) | 274.95 in (metric) | 296.1 in (metric) | 317.25 in (metric) | 338.4 in (metric) | 359.55 in (metric) | 380.7 in (metric) | 401.85 in (metric) | 423 in (metric) | 444.15 in (metric) | 465.3 in (metric) | 486.45 in (metric) | 507.6 in (metric) | 528.75 in (metric) | 549.9 in (metric) | 571.05 in (metric) | 592.2 in (metric) | 613.35 in (metric) | 634.5 in (metric) | 655.65 in (metric) | 676.8 in (metric) | 697.95 in (metric) | 719.1 in (metric) | 740.25 in (metric) | 761.4 in (metric) | 782.55 in (metric) | 803.7 in (metric) | 824.85 in (metric) | 846 in (metric) | 867.15 in (metric) | 888.3 in (metric) | 909.45 in (metric) | 930.6 in (metric) | 951.75 in (metric) | 972.9 in (metric) | 994.05 in (metric) | 1,015.2 in (metric) | 1,036.35 in (metric) | 1,057.5 in (metric) | 1,078.65 in (metric) | 1,099.8 in (metric) | 1,120.95 in (metric) | 1,142.1 in (metric) | 1,163.25 in (metric) | 1,184.4 in (metric) | 1,205.55 in (metric) | 1,226.7 in (metric) | 1,247.85 in (metric) | 1 269 in (metric) | 1,290.15 in (metric) | 1,311.3 in (metric) | 1,332.45 in (metric) | 1,353.6 in (metric) | 1,374.75 in (metric) | 1,395.9 in (metric) | 1,417.05 in (metric) | 1,438.2 in (metric) | 1,459.35 in (metric) | 1,480.5 in (metric) | 1,501.65 in (metric) | 1,522.8 in (metric) | 1,543.95 in (metric) | 1,565.1 in (metric) | 1,586.25 in (metric) | 1,607.4 in (metric) | 1,628.55 in (metric) | 1,649.7 in (metric) | 1,670.85 in (metric) | 1 692 in (metric) | 1,713.15 in (metric) | 1,734.3 in (metric) | 1,755.45 in (metric) | 1,776.6 in (metric) | 1,797.75 in (metric) | 1,818.9 in (metric) | 1,840.05 in (metric) | 1,861.2 in (metric) | 1,882.35 in (metric) | 1,903.5 in (metric) | 1,924.65 in (metric) | 1,945.8 in (metric) | 1,966.95 in (metric) | 1,988.1 in (metric) | 2,009.25 in (metric) | 2,030.4 in (metric) | 2,051.55 in (metric) | 2,072.7 in (metric) | 2,093.85 in (metric) | 2 115 in (metric) |
The barleycorn is a small English unit of length equal to 1⁄3 of an inch (i.e., close to 0.8467 cm) still used in Great Britain and Ireland as a determiner of shoe sizes.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| barleycorn | = 1⁄3 in | ≈ 8.46×10−3 m | Imperial/US |
| barleycorns | metric inches | barleycorns | metric inches |
|---|---|---|---|
| 1 | ≈ 21.15 | 4 | ≈ 84.6 |
| 1.5 | ≈ 31.725 | 4.5 | ≈ 95.175 |
| 2 | ≈ 42.3 | 5 | ≈ 105.75 |
| 2.5 | ≈ 52.875 | 5.5 | ≈ 116.325 |
| 3 | ≈ 63.45 | 6 | ≈ 126.9 |
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 | barleycorns | metric inches | barleycorns |
|---|---|---|---|
| 1 | ≈ 0.047281323877069 | 4 | ≈ 0.18912529550827 |
| 1.5 | ≈ 0.070921985815603 | 4.5 | ≈ 0.21276595744681 |
| 2 | ≈ 0.094562647754137 | 5 | ≈ 0.23640661938534 |
| 2.5 | ≈ 0.11820330969267 | 5.5 | ≈ 0.26004728132388 |
| 3 | ≈ 0.14184397163121 | 6 | ≈ 0.28368794326241 |
| barleycorns | metric inches |
|---|---|
| 1 | ≈ 21.15 |
| 0.0472813 | ≈ 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 …) |