| 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 |
| span | 5 span | 10 span | 15 span | 20 span | 25 span | 30 span | 35 span | 40 span | 45 span | 50 span | 55 span | 60 span | 65 span | 70 span | 75 span | 80 span | 85 span | 90 span | 95 span | 100 span | 105 span | 110 span | 115 span | 120 span | 125 span | 130 span | 135 span | 140 span | 145 span | 150 span | 155 span | 160 span | 165 span | 170 span | 175 span | 180 span | 185 span | 190 span | 195 span | 200 span | 205 span | 210 span | 215 span | 220 span | 225 span | 230 span | 235 span | 240 span | 245 span | 250 span | 255 span | 260 span | 265 span | 270 span | 275 span | 280 span | 285 span | 290 span | 295 span | 300 span | 305 span | 310 span | 315 span | 320 span | 325 span | 330 span | 335 span | 340 span | 345 span | 350 span | 355 span | 360 span | 365 span | 370 span | 375 span | 380 span | 385 span | 390 span | 395 span | 400 span | 405 span | 410 span | 415 span | 420 span | 425 span | 430 span | 435 span | 440 span | 445 span | 450 span | 455 span | 460 span | 465 span | 470 span | 475 span | 480 span | 485 span | 490 span | 495 span | 500 span |
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.
| 1 ell = 5 spans | 4 ell = 20 spans |
| 1.5 ell = 7.5 spans | 4.5 ell = 22.5 spans |
| 2 ell = 10 spans | 5 ell = 25 spans |
| 2.5 ell = 12.5 spans | 5.5 ell = 27.5 spans |
| 3 ell = 15 spans | 6 ell = 30 spans |
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span (thumb to little finger) and little span (index finger to little finger).
| 1 spans = 0.2 ell | 4 spans = 0.8 ell |
| 1.5 spans = 0.3 ell | 4.5 spans = 0.9 ell |
| 2 spans = 0.4 ell | 5 spans = 1 ell |
| 2.5 spans = 0.5 ell | 5.5 spans = 1.1 ell |
| 3 spans = 0.6 ell | 6 spans = 1.2 ell |
| 1 ell = 5 spans |
| 1 spans = 0.2 ell |