| foot, metric | 1 mf | 2 mf | 3 mf | 4 mf | 5 mf | 6 mf | 7 mf | 8 mf | 9 mf | 10 mf | 11 mf | 12 mf | 13 mf | 14 mf | 15 mf | 16 mf | 17 mf | 18 mf | 19 mf | 20 mf | 21 mf | 22 mf | 23 mf | 24 mf | 25 mf | 26 mf | 27 mf | 28 mf | 29 mf | 30 mf | 31 mf | 32 mf | 33 mf | 34 mf | 35 mf | 36 mf | 37 mf | 38 mf | 39 mf | 40 mf | 41 mf | 42 mf | 43 mf | 44 mf | 45 mf | 46 mf | 47 mf | 48 mf | 49 mf | 50 mf | 51 mf | 52 mf | 53 mf | 54 mf | 55 mf | 56 mf | 57 mf | 58 mf | 59 mf | 60 mf | 61 mf | 62 mf | 63 mf | 64 mf | 65 mf | 66 mf | 67 mf | 68 mf | 69 mf | 70 mf | 71 mf | 72 mf | 73 mf | 74 mf | 75 mf | 76 mf | 77 mf | 78 mf | 79 mf | 80 mf | 81 mf | 82 mf | 83 mf | 84 mf | 85 mf | 86 mf | 87 mf | 88 mf | 89 mf | 90 mf | 91 mf | 92 mf | 93 mf | 94 mf | 95 mf | 96 mf | 97 mf | 98 mf | 99 mf | 100 mf |
| nail (cloth) | 5.5332942 nail (cloth) | 11.0665885 nail (cloth) | 16.5998827 nail (cloth) | 22.1331770 nail (cloth) | 27.6664712 nail (cloth) | 33.1997655 nail (cloth) | 38.7330597 nail (cloth) | 44.2663539 nail (cloth) | 49.7996482 nail (cloth) | 55.3329424 nail (cloth) | 60.8662367 nail (cloth) | 66.3995309 nail (cloth) | 71.9328252 nail (cloth) | 77.4661194 nail (cloth) | 82.9994137 nail (cloth) | 88.5327079 nail (cloth) | 94.0660021 nail (cloth) | 99.5992964 nail (cloth) | 105.1325906 nail (cloth) | 110.6658849 nail (cloth) | 116.1991791 nail (cloth) | 121.7324734 nail (cloth) | 127.2657676 nail (cloth) | 132.7990618 nail (cloth) | 138.3323561 nail (cloth) | 143.8656503 nail (cloth) | 149.3989446 nail (cloth) | 154.9322388 nail (cloth) | 160.4655331 nail (cloth) | 165.9988273 nail (cloth) | 171.5321216 nail (cloth) | 177.0654158 nail (cloth) | 182.5987100 nail (cloth) | 188.1320043 nail (cloth) | 193.6652985 nail (cloth) | 199.1985928 nail (cloth) | 204.7318870 nail (cloth) | 210.2651813 nail (cloth) | 215.7984755 nail (cloth) | 221.3317697 nail (cloth) | 226.8650640 nail (cloth) | 232.3983582 nail (cloth) | 237.9316525 nail (cloth) | 243.4649467 nail (cloth) | 248.9982410 nail (cloth) | 254.5315352 nail (cloth) | 260.0648294 nail (cloth) | 265.5981237 nail (cloth) | 271.1314179 nail (cloth) | 276.6647122 nail (cloth) | 282.1980064 nail (cloth) | 287.7313007 nail (cloth) | 293.2645949 nail (cloth) | 298.7978892 nail (cloth) | 304.3311834 nail (cloth) | 309.8644776 nail (cloth) | 315.3977719 nail (cloth) | 320.9310661 nail (cloth) | 326.4643604 nail (cloth) | 331.9976546 nail (cloth) | 337.5309489 nail (cloth) | 343.0642431 nail (cloth) | 348.5975373 nail (cloth) | 354.1308316 nail (cloth) | 359.6641258 nail (cloth) | 365.1974201 nail (cloth) | 370.7307143 nail (cloth) | 376.2640086 nail (cloth) | 381.7973028 nail (cloth) | 387.3305970 nail (cloth) | 392.8638913 nail (cloth) | 398.3971855 nail (cloth) | 403.9304798 nail (cloth) | 409.4637740 nail (cloth) | 414.9970683 nail (cloth) | 420.5303625 nail (cloth) | 426.0636568 nail (cloth) | 431.5969510 nail (cloth) | 437.1302452 nail (cloth) | 442.6635395 nail (cloth) | 448.1968337 nail (cloth) | 453.7301280 nail (cloth) | 459.2634222 nail (cloth) | 464.7967165 nail (cloth) | 470.3300107 nail (cloth) | 475.8633049 nail (cloth) | 481.3965992 nail (cloth) | 486.9298934 nail (cloth) | 492.4631877 nail (cloth) | 497.9964819 nail (cloth) | 503.5297762 nail (cloth) | 509.0630704 nail (cloth) | 514.5963647 nail (cloth) | 520.1296589 nail (cloth) | 525.6629531 nail (cloth) | 531.1962474 nail (cloth) | 536.7295416 nail (cloth) | 542.2628359 nail (cloth) | 547.7961301 nail (cloth) | 553.3294244 nail (cloth) |
A metric foot is a nickname for a preferred number length of 3 basic modules (3 M), or 30 centimetres (11.811 in). The 30 cm metric ruler was a similar length to the traditional imperial one-foot ruler. A metric foot is 4.8 millimetres (0.189 in) shorter than an imperial foot.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| foot, metric | mf | ≡ √ 1⁄10 m | ≈ 0.31622776602 m | Metric system Non-SI |
| feet, metric | nails (cloth) | feet, metric | nails (cloth) |
|---|---|---|---|
| 1 | ≈ 5.5332942435696 | 4 | ≈ 22.133176974278 |
| 1.5 | ≈ 8.2999413653543 | 4.5 | ≈ 24.899824096063 |
| 2 | ≈ 11.066588487139 | 5 | ≈ 27.666471217848 |
| 2.5 | ≈ 13.833235608924 | 5.5 | ≈ 30.433118339633 |
| 3 | ≈ 16.599882730709 | 6 | ≈ 33.199765461417 |
A nail, as a unit of cloth measurement, is generally a sixteenth of a yard or 2 1/4 inches (5.715 cm). The nail was apparently named after the practice of hammering brass nails into the counter at shops where cloth was sold.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| nail (cloth) | ≡ 2 1⁄4 in | = 0.05715 m | Other (Length) |
| nails (cloth) | feet, metric | nails (cloth) | feet, metric |
|---|---|---|---|
| 1 | ≈ 0.18072416827682 | 4 | ≈ 0.72289667310726 |
| 1.5 | ≈ 0.27108625241522 | 4.5 | ≈ 0.81325875724567 |
| 2 | ≈ 0.36144833655363 | 5 | ≈ 0.90362084138408 |
| 2.5 | ≈ 0.45181042069204 | 5.5 | ≈ 0.99398292552249 |
| 3 | ≈ 0.54217250483045 | 6 | ≈ 1.0843450096609 |
| feet, metric | nails (cloth) |
|---|---|
| 1 | ≈ 5.5332942 |
| 0.1807242 | ≈ 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 …) |