line | 1 ln | 2 ln | 3 ln | 4 ln | 5 ln | 6 ln | 7 ln | 8 ln | 9 ln | 10 ln | 11 ln | 12 ln | 13 ln | 14 ln | 15 ln | 16 ln | 17 ln | 18 ln | 19 ln | 20 ln | 21 ln | 22 ln | 23 ln | 24 ln | 25 ln | 26 ln | 27 ln | 28 ln | 29 ln | 30 ln | 31 ln | 32 ln | 33 ln | 34 ln | 35 ln | 36 ln | 37 ln | 38 ln | 39 ln | 40 ln | 41 ln | 42 ln | 43 ln | 44 ln | 45 ln | 46 ln | 47 ln | 48 ln | 49 ln | 50 ln | 51 ln | 52 ln | 53 ln | 54 ln | 55 ln | 56 ln | 57 ln | 58 ln | 59 ln | 60 ln | 61 ln | 62 ln | 63 ln | 64 ln | 65 ln | 66 ln | 67 ln | 68 ln | 69 ln | 70 ln | 71 ln | 72 ln | 73 ln | 74 ln | 75 ln | 76 ln | 77 ln | 78 ln | 79 ln | 80 ln | 81 ln | 82 ln | 83 ln | 84 ln | 85 ln | 86 ln | 87 ln | 88 ln | 89 ln | 90 ln | 91 ln | 92 ln | 93 ln | 94 ln | 95 ln | 96 ln | 97 ln | 98 ln | 99 ln | 100 ln |
span | 0.0092593 span | 0.0185185 span | 0.0277778 span | 0.0370370 span | 0.0462963 span | 0.0555556 span | 0.0648148 span | 0.0740741 span | 0.0833333 span | 0.0925926 span | 0.1018519 span | 0.1111111 span | 0.1203704 span | 0.1296296 span | 0.1388889 span | 0.1481481 span | 0.1574074 span | 0.1666667 span | 0.1759259 span | 0.1851852 span | 0.1944444 span | 0.2037037 span | 0.2129630 span | 0.2222222 span | 0.2314815 span | 0.2407407 span | 0.25 span | 0.2592593 span | 0.2685185 span | 0.2777778 span | 0.2870370 span | 0.2962963 span | 0.3055556 span | 0.3148148 span | 0.3240741 span | 0.3333333 span | 0.3425926 span | 0.3518519 span | 0.3611111 span | 0.3703704 span | 0.3796296 span | 0.3888889 span | 0.3981481 span | 0.4074074 span | 0.4166667 span | 0.4259259 span | 0.4351852 span | 0.4444444 span | 0.4537037 span | 0.4629630 span | 0.4722222 span | 0.4814815 span | 0.4907407 span | 0.5 span | 0.5092593 span | 0.5185185 span | 0.5277778 span | 0.5370370 span | 0.5462963 span | 0.5555556 span | 0.5648148 span | 0.5740741 span | 0.5833333 span | 0.5925926 span | 0.6018519 span | 0.6111111 span | 0.6203704 span | 0.6296296 span | 0.6388889 span | 0.6481481 span | 0.6574074 span | 0.6666667 span | 0.6759259 span | 0.6851852 span | 0.6944444 span | 0.7037037 span | 0.7129630 span | 0.7222222 span | 0.7314815 span | 0.7407407 span | 0.75 span | 0.7592593 span | 0.7685185 span | 0.7777778 span | 0.7870370 span | 0.7962963 span | 0.8055556 span | 0.8148148 span | 0.8240741 span | 0.8333333 span | 0.8425926 span | 0.8518519 span | 0.8611111 span | 0.8703704 span | 0.8796296 span | 0.8888889 span | 0.8981481 span | 0.9074074 span | 0.9166667 span | 0.9259259 span |
The line (abbreviated L or l) was a small English unit of length, variously reckoned as 1⁄10, 1⁄12, 1⁄16, or 1⁄40 of an inch. It was not included among the units authorized as the British Imperial system in 1824.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
line | ln | ≡ 1⁄12 in | = 0.002116 m | Imperial/US |
lines | spans | lines | spans |
---|---|---|---|
1 | = 0.0092592592592593 | 4 | = 0.037037037037037 |
1.5 | = 0.013888888888889 | 4.5 | = 0.041666666666667 |
2 | = 0.018518518518519 | 5 | = 0.046296296296296 |
2.5 | = 0.023148148148148 | 5.5 | = 0.050925925925926 |
3 | = 0.027777777777778 | 6 | = 0.055555555555556 |
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).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
span | span | ≡ 9 in | = 0.2286 m | Imperial/US |
spans | lines | spans | lines |
---|---|---|---|
1 | = 108 | 4 | = 432 |
1.5 | = 162 | 4.5 | = 486 |
2 | = 216 | 5 | = 540 |
2.5 | = 270 | 5.5 | = 594 |
3 | = 324 | 6 | = 648 |
lines | spans |
---|---|
1 | = 0.0092593 |
108 | = 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 …) |