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 |
inch | 12.4499120 in | 24.8998241 in | 37.3497361 in | 49.7996482 in | 62.2495602 in | 74.6994723 in | 87.1493843 in | 99.5992964 in | 112.0492084 in | 124.4991205 in | 136.9490325 in | 149.3989446 in | 161.8488566 in | 174.2987687 in | 186.7486807 in | 199.1985928 in | 211.6485048 in | 224.0984169 in | 236.5483289 in | 248.9982410 in | 261.4481530 in | 273.8980651 in | 286.3479771 in | 298.7978892 in | 311.2478012 in | 323.6977132 in | 336.1476253 in | 348.5975373 in | 361.0474494 in | 373.4973614 in | 385.9472735 in | 398.3971855 in | 410.8470976 in | 423.2970096 in | 435.7469217 in | 448.1968337 in | 460.6467458 in | 473.0966578 in | 485.5465699 in | 497.9964819 in | 510.4463940 in | 522.8963060 in | 535.3462181 in | 547.7961301 in | 560.2460422 in | 572.6959542 in | 585.1458663 in | 597.5957783 in | 610.0456904 in | 622.4956024 in | 634.9455144 in | 647.3954265 in | 659.8453385 in | 672.2952506 in | 684.7451626 in | 697.1950747 in | 709.6449867 in | 722.0948988 in | 734.5448108 in | 746.9947229 in | 759.4446349 in | 771.8945470 in | 784.3444590 in | 796.7943711 in | 809.2442831 in | 821.6941952 in | 834.1441072 in | 846.5940193 in | 859.0439313 in | 871.4938434 in | 883.9437554 in | 896.3936675 in | 908.8435795 in | 921.2934916 in | 933.7434036 in | 946.1933157 in | 958.6432277 in | 971.0931397 in | 983.5430518 in | 995.9929638 in | 1,008.4428759 in | 1,020.8927879 in | 1,033.3427000 in | 1,045.7926120 in | 1,058.2425241 in | 1,070.6924361 in | 1,083.1423482 in | 1,095.5922602 in | 1,108.0421723 in | 1,120.4920843 in | 1,132.9419964 in | 1,145.3919084 in | 1,157.8418205 in | 1,170.2917325 in | 1,182.7416446 in | 1,195.1915566 in | 1,207.6414687 in | 1,220.0913807 in | 1,232.5412928 in | 1,244.9912048 in |
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 | inches | feet, metric | inches |
---|---|---|---|
1 | ≈ 12.449912048031 | 4 | ≈ 49.799648192126 |
1.5 | ≈ 18.674868072047 | 4.5 | ≈ 56.024604216142 |
2 | ≈ 24.899824096063 | 5 | ≈ 62.249560240157 |
2.5 | ≈ 31.124780120079 | 5.5 | ≈ 68.474516264173 |
3 | ≈ 37.349736144094 | 6 | ≈ 74.699472288189 |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch | in | ≡ 2.54 cm ≡ 1⁄36 yd ≡ 1⁄12 ft | ≡ 0.0254 m | Imperial/US |
inches | feet, metric | inches | feet, metric |
---|---|---|---|
1 | ≈ 0.080321852567474 | 4 | ≈ 0.32128741026989 |
1.5 | ≈ 0.12048277885121 | 4.5 | ≈ 0.36144833655363 |
2 | ≈ 0.16064370513495 | 5 | ≈ 0.40160926283737 |
2.5 | ≈ 0.20080463141868 | 5.5 | ≈ 0.44177018912111 |
3 | ≈ 0.24096555770242 | 6 | ≈ 0.48193111540484 |
feet, metric | inches |
---|---|
1 | ≈ 12.4499120 |
0.0803219 | ≈ 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 …) |