chain | 1 ch | 2 ch | 3 ch | 4 ch | 5 ch | 6 ch | 7 ch | 8 ch | 9 ch | 10 ch | 11 ch | 12 ch | 13 ch | 14 ch | 15 ch | 16 ch | 17 ch | 18 ch | 19 ch | 20 ch | 21 ch | 22 ch | 23 ch | 24 ch | 25 ch | 26 ch | 27 ch | 28 ch | 29 ch | 30 ch | 31 ch | 32 ch | 33 ch | 34 ch | 35 ch | 36 ch | 37 ch | 38 ch | 39 ch | 40 ch | 41 ch | 42 ch | 43 ch | 44 ch | 45 ch | 46 ch | 47 ch | 48 ch | 49 ch | 50 ch | 51 ch | 52 ch | 53 ch | 54 ch | 55 ch | 56 ch | 57 ch | 58 ch | 59 ch | 60 ch | 61 ch | 62 ch | 63 ch | 64 ch | 65 ch | 66 ch | 67 ch | 68 ch | 69 ch | 70 ch | 71 ch | 72 ch | 73 ch | 74 ch | 75 ch | 76 ch | 77 ch | 78 ch | 79 ch | 80 ch | 81 ch | 82 ch | 83 ch | 84 ch | 85 ch | 86 ch | 87 ch | 88 ch | 89 ch | 90 ch | 91 ch | 92 ch | 93 ch | 94 ch | 95 ch | 96 ch | 97 ch | 98 ch | 99 ch | 100 ch |
point (PostScript) | 57,036.6884037 pt | 114,073.3768075 pt | 171,110.0652112 pt | 228,146.7536150 pt | 285,183.4420187 pt | 342,220.1304225 pt | 399,256.8188262 pt | 456,293.5072299 pt | 513,330.1956337 pt | 570,366.8840374 pt | 627,403.5724412 pt | 684,440.2608449 pt | 741,476.9492487 pt | 798,513.6376524 pt | 855,550.3260561 pt | 912,587.0144599 pt | 969,623.7028636 pt | 1,026,660.3912674 pt | 1,083,697.0796711 pt | 1,140,733.7680749 pt | 1,197,770.4564786 pt | 1,254,807.1448823 pt | 1,311,843.8332861 pt | 1,368,880.5216898 pt | 1,425,917.2100936 pt | 1,482,953.8984973 pt | 1,539,990.586901 pt | 1,597,027.2753048 pt | 1,654,063.9637085 pt | 1,711,100.6521123 pt | 1,768,137.340516 pt | 1,825,174.0289198 pt | 1,882,210.7173235 pt | 1,939,247.4057272 pt | 1,996,284.094131 pt | 2,053,320.7825347 pt | 2,110,357.4709385 pt | 2,167,394.1593422 pt | 2,224,430.847746 pt | 2,281,467.5361497 pt | 2,338,504.2245534 pt | 2,395,540.9129572 pt | 2,452,577.6013609 pt | 2,509,614.2897647 pt | 2,566,650.9781684 pt | 2,623,687.6665722 pt | 2,680,724.3549759 pt | 2,737,761.0433796 pt | 2,794,797.7317834 pt | 2,851,834.4201871 pt | 2,908,871.1085909 pt | 2,965,907.7969946 pt | 3,022,944.4853984 pt | 3,079,981.1738021 pt | 3,137,017.8622058 pt | 3,194,054.5506096 pt | 3,251,091.2390133 pt | 3,308,127.9274171 pt | 3,365,164.6158208 pt | 3,422,201.3042246 pt | 3,479,237.9926283 pt | 3,536,274.681032 pt | 3,593,311.3694358 pt | 3,650,348.0578395 pt | 3,707,384.7462433 pt | 3,764,421.434647 pt | 3,821,458.1230508 pt | 3,878,494.8114545 pt | 3,935,531.4998582 pt | 3,992,568.188262 pt | 4,049,604.8766657 pt | 4,106,641.5650695 pt | 4,163,678.2534732 pt | 4,220,714.9418769 pt | 4,277,751.6302807 pt | 4,334,788.3186844 pt | 4,391,825.0070882 pt | 4,448,861.6954919 pt | 4,505,898.3838957 pt | 4,562,935.0722994 pt | 4,619,971.7607031 pt | 4,677,008.4491069 pt | 4,734,045.1375106 pt | 4,791,081.8259144 pt | 4,848,118.5143181 pt | 4,905,155.2027219 pt | 4,962,191.8911256 pt | 5,019,228.5795293 pt | 5,076,265.2679331 pt | 5,133,301.9563368 pt | 5,190,338.6447406 pt | 5,247,375.3331443 pt | 5,304,412.0215481 pt | 5,361,448.7099518 pt | 5,418,485.3983555 pt | 5,475,522.0867593 pt | 5,532,558.775163 pt | 5,589,595.4635668 pt | 5,646,632.1519705 pt | 5,703,668.8403743 pt |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
chain | ch | ≡ 66 ft (US) ≡ 4 rods | ≈ 20.11684 m | Imperial/US |
chains | points (PostScript) | chains | points (PostScript) |
---|---|---|---|
1 | ≈ 57036.688403743 | 4 | ≈ 228146.75361497 |
1.5 | ≈ 85555.032605614 | 4.5 | ≈ 256665.09781684 |
2 | ≈ 114073.37680749 | 5 | ≈ 285183.44201871 |
2.5 | ≈ 142591.72100936 | 5.5 | ≈ 313701.78622058 |
3 | ≈ 171110.06521123 | 6 | ≈ 342220.13042246 |
= 0.0003527 m
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (PostScript) | pt | ≡ 1⁄72 in | = 0.0003527 m | Other (Length) |
points (PostScript) | chains | points (PostScript) | chains |
---|---|---|---|
1 | ≈ 1.7532574698611E-5 | 4 | ≈ 7.0130298794443E-5 |
1.5 | ≈ 2.6298862047916E-5 | 4.5 | ≈ 7.8896586143748E-5 |
2 | ≈ 3.5065149397221E-5 | 5 | ≈ 8.7662873493054E-5 |
2.5 | ≈ 4.3831436746527E-5 | 5.5 | ≈ 9.6429160842359E-5 |
3 | ≈ 5.2597724095832E-5 | 6 | ≈ 0.00010519544819166 |
chains | points (PostScript) |
---|---|
1 | ≈ 57,036.6884037 |
1.7532574698611 × 10-5 | ≈ 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 …) |