ell | 1 ell | 2 ell | 3 ell | 4 ell | 5 ell | 6 ell | 7 ell | 8 ell | 9 ell | 10 ell | 11 ell | 12 ell | 13 ell | 14 ell | 15 ell | 16 ell | 17 ell | 18 ell | 19 ell | 20 ell | 21 ell | 22 ell | 23 ell | 24 ell | 25 ell | 26 ell | 27 ell | 28 ell | 29 ell | 30 ell | 31 ell | 32 ell | 33 ell | 34 ell | 35 ell | 36 ell | 37 ell | 38 ell | 39 ell | 40 ell | 41 ell | 42 ell | 43 ell | 44 ell | 45 ell | 46 ell | 47 ell | 48 ell | 49 ell | 50 ell | 51 ell | 52 ell | 53 ell | 54 ell | 55 ell | 56 ell | 57 ell | 58 ell | 59 ell | 60 ell | 61 ell | 62 ell | 63 ell | 64 ell | 65 ell | 66 ell | 67 ell | 68 ell | 69 ell | 70 ell | 71 ell | 72 ell | 73 ell | 74 ell | 75 ell | 76 ell | 77 ell | 78 ell | 79 ell | 80 ell | 81 ell | 82 ell | 83 ell | 84 ell | 85 ell | 86 ell | 87 ell | 88 ell | 89 ell | 90 ell | 91 ell | 92 ell | 93 ell | 94 ell | 95 ell | 96 ell | 97 ell | 98 ell | 99 ell | 100 ell |
inch | 45 in | 90 in | 135 in | 180 in | 225 in | 270 in | 315 in | 360 in | 405 in | 450 in | 495 in | 540 in | 585 in | 630 in | 675 in | 720 in | 765 in | 810 in | 855 in | 900 in | 945 in | 990 in | 1 035 in | 1 080 in | 1 125 in | 1 170 in | 1 215 in | 1 260 in | 1 305 in | 1 350 in | 1 395 in | 1 440 in | 1 485 in | 1 530 in | 1 575 in | 1 620 in | 1 665 in | 1 710 in | 1 755 in | 1 800 in | 1 845 in | 1 890 in | 1 935 in | 1 980 in | 2 025 in | 2 070 in | 2 115 in | 2 160 in | 2 205 in | 2 250 in | 2 295 in | 2 340 in | 2 385 in | 2 430 in | 2 475 in | 2 520 in | 2 565 in | 2 610 in | 2 655 in | 2 700 in | 2 745 in | 2 790 in | 2 835 in | 2 880 in | 2 925 in | 2 970 in | 3 015 in | 3 060 in | 3 105 in | 3 150 in | 3 195 in | 3 240 in | 3 285 in | 3 330 in | 3 375 in | 3 420 in | 3 465 in | 3 510 in | 3 555 in | 3 600 in | 3 645 in | 3 690 in | 3 735 in | 3 780 in | 3 825 in | 3 870 in | 3 915 in | 3 960 in | 4 005 in | 4 050 in | 4 095 in | 4 140 in | 4 185 in | 4 230 in | 4 275 in | 4 320 in | 4 365 in | 4 410 in | 4 455 in | 4 500 in |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ell | ell | ≡ 45 in (In England usually) | = 1.143 m | Other (Length) |
ell | inches | ell | inches |
---|---|---|---|
1 | = 45 | 4 | = 180 |
1.5 | = 67.5 | 4.5 | = 202.5 |
2 | = 90 | 5 | = 225 |
2.5 | = 112.5 | 5.5 | = 247.5 |
3 | = 135 | 6 | = 270 |
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 | ell | inches | ell |
---|---|---|---|
1 | = 0.022222222222222 | 4 | = 0.088888888888889 |
1.5 | = 0.033333333333333 | 4.5 | = 0.1 |
2 | = 0.044444444444444 | 5 | = 0.11111111111111 |
2.5 | = 0.055555555555556 | 5.5 | = 0.12222222222222 |
3 | = 0.066666666666667 | 6 | = 0.13333333333333 |
ell | inches |
---|---|
1 | = 45 |
0.0222222 | = 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 …) |