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 (typography) | 57,237.9543834 pt | 114,475.9087668 pt | 171,713.8631502 pt | 228,951.8175336 pt | 286,189.7719170 pt | 343,427.7263004 pt | 400,665.6806838 pt | 457,903.6350672 pt | 515,141.5894506 pt | 572,379.5438340 pt | 629,617.4982174 pt | 686,855.4526008 pt | 744,093.4069842 pt | 801,331.3613676 pt | 858,569.3157511 pt | 915,807.2701345 pt | 973,045.2245179 pt | 1,030,283.1789013 pt | 1,087,521.1332847 pt | 1,144,759.0876681 pt | 1,201,997.0420515 pt | 1,259,234.9964349 pt | 1,316,472.9508183 pt | 1,373,710.9052017 pt | 1,430,948.8595851 pt | 1,488,186.8139685 pt | 1,545,424.7683519 pt | 1,602,662.7227353 pt | 1,659,900.6771187 pt | 1,717,138.6315021 pt | 1,774,376.5858855 pt | 1,831,614.5402689 pt | 1,888,852.4946523 pt | 1,946,090.4490357 pt | 2,003,328.4034191 pt | 2,060,566.3578025 pt | 2,117,804.3121859 pt | 2,175,042.2665693 pt | 2,232,280.2209527 pt | 2,289,518.1753361 pt | 2,346,756.1297195 pt | 2,403,994.0841029 pt | 2,461,232.0384863 pt | 2,518,469.9928697 pt | 2,575,707.9472531 pt | 2,632,945.9016365 pt | 2,690,183.8560199 pt | 2,747,421.8104034 pt | 2,804,659.7647868 pt | 2,861,897.7191702 pt | 2,919,135.6735536 pt | 2,976,373.627937 pt | 3,033,611.5823204 pt | 3,090,849.5367038 pt | 3,148,087.4910872 pt | 3,205,325.4454706 pt | 3,262,563.399854 pt | 3,319,801.3542374 pt | 3,377,039.3086208 pt | 3,434,277.2630042 pt | 3,491,515.2173876 pt | 3,548,753.171771 pt | 3,605,991.1261544 pt | 3,663,229.0805378 pt | 3,720,467.0349212 pt | 3,777,704.9893046 pt | 3,834,942.943688 pt | 3,892,180.8980714 pt | 3,949,418.8524548 pt | 4,006,656.8068382 pt | 4,063,894.7612216 pt | 4,121,132.715605 pt | 4,178,370.6699884 pt | 4,235,608.6243718 pt | 4,292,846.5787552 pt | 4,350,084.5331386 pt | 4,407,322.487522 pt | 4,464,560.4419054 pt | 4,521,798.3962889 pt | 4,579,036.3506723 pt | 4,636,274.3050557 pt | 4,693,512.2594391 pt | 4,750,750.2138225 pt | 4,807,988.1682059 pt | 4,865,226.1225893 pt | 4,922,464.0769727 pt | 4,979,702.0313561 pt | 5,036,939.9857395 pt | 5,094,177.9401229 pt | 5,151,415.8945063 pt | 5,208,653.8488897 pt | 5,265,891.8032731 pt | 5,323,129.7576565 pt | 5,380,367.7120399 pt | 5,437,605.6664233 pt | 5,494,843.6208067 pt | 5,552,081.5751901 pt | 5,609,319.5295735 pt | 5,666,557.4839569 pt | 5,723,795.4383403 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 (typography) | chains | points (typography) |
---|---|---|---|
1 | ≈ 57237.954383403 | 4 | ≈ 228951.81753361 |
1.5 | ≈ 85856.931575105 | 4.5 | ≈ 257570.79472531 |
2 | ≈ 114475.90876681 | 5 | ≈ 286189.77191702 |
2.5 | ≈ 143094.88595851 | 5.5 | ≈ 314808.74910872 |
3 | ≈ 171713.86315021 | 6 | ≈ 343427.72630042 |
≡ 1⁄72.27 in
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (typography) | pt | ≡ 1⁄72.27 in | = 0.0003514598 m | Other (Length) |
points (typography) | chains | points (typography) | chains |
---|---|---|---|
1 | ≈ 1.7470924856985E-5 | 4 | ≈ 6.9883699427942E-5 |
1.5 | ≈ 2.6206387285478E-5 | 4.5 | ≈ 7.8619161856435E-5 |
2 | ≈ 3.4941849713971E-5 | 5 | ≈ 8.7354624284927E-5 |
2.5 | ≈ 4.3677312142464E-5 | 5.5 | ≈ 9.609008671342E-5 |
3 | ≈ 5.2412774570956E-5 | 6 | ≈ 0.00010482554914191 |
chains | points (typography) |
---|---|
1 | ≈ 57,237.9543834 |
1.7470924856985 × 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 …) |