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 |
twip | 1,140,539.7437351 twp | 2,281,079.4874702 twp | 3,421,619.2312054 twp | 4,562,158.9749405 twp | 5,702,698.7186756 twp | 6,843,238.4624107 twp | 7,983,778.2061458 twp | 9,124,317.9498809 twp | 10,264,857.693616 twp | 11,405,397.437351 twp | 12,545,937.181086 twp | 13,686,476.924821 twp | 14,827,016.668557 twp | 15,967,556.412292 twp | 17,108,096.156027 twp | 18,248,635.899762 twp | 19,389,175.643497 twp | 20,529,715.387232 twp | 21,670,255.130967 twp | 22,810,794.874702 twp | 23,951,334.618437 twp | 25,091,874.362173 twp | 26,232,414.105908 twp | 27,372,953.849643 twp | 28,513,493.593378 twp | 29,654,033.337113 twp | 30,794,573.080848 twp | 31,935,112.824583 twp | 33,075,652.568318 twp | 34,216,192.312054 twp | 35,356,732.055789 twp | 36,497,271.799524 twp | 37,637,811.543259 twp | 38,778,351.286994 twp | 39,918,891.030729 twp | 41,059,430.774464 twp | 42,199,970.518199 twp | 43,340,510.261934 twp | 44,481,050.00567 twp | 45,621,589.749405 twp | 46,762,129.49314 twp | 47,902,669.236875 twp | 49,043,208.98061 twp | 50,183,748.724345 twp | 51,324,288.46808 twp | 52,464,828.211815 twp | 53,605,367.955551 twp | 54,745,907.699286 twp | 55,886,447.443021 twp | 57,026,987.186756 twp | 58,167,526.930491 twp | 59,308,066.674226 twp | 60,448,606.417961 twp | 61,589,146.161696 twp | 62,729,685.905431 twp | 63,870,225.649167 twp | 65,010,765.392902 twp | 66,151,305.136637 twp | 67,291,844.880372 twp | 68,432,384.624107 twp | 69,572,924.367842 twp | 70,713,464.111577 twp | 71,854,003.855312 twp | 72,994,543.599048 twp | 74,135,083.342783 twp | 75,275,623.086518 twp | 76,416,162.830253 twp | 77,556,702.573988 twp | 78,697,242.317723 twp | 79,837,782.061458 twp | 80,978,321.805193 twp | 82,118,861.548928 twp | 83,259,401.292664 twp | 84,399,941.036399 twp | 85,540,480.780134 twp | 86,681,020.523869 twp | 87,821,560.267604 twp | 88,962,100.011339 twp | 90,102,639.755074 twp | 91,243,179.498809 twp | 92,383,719.242545 twp | 93,524,258.98628 twp | 94,664,798.730015 twp | 95,805,338.47375 twp | 96,945,878.217485 twp | 98,086,417.96122 twp | 99,226,957.704955 twp | 100,367,497.44869 twp | 101,508,037.19243 twp | 102,648,576.93616 twp | 103,789,116.6799 twp | 104,929,656.42363 twp | 106,070,196.16737 twp | 107,210,735.9111 twp | 108,351,275.65484 twp | 109,491,815.39857 twp | 110,632,355.14231 twp | 111,772,894.88604 twp | 112,913,434.62978 twp | 114,053,974.37351 twp |
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 | twips | chains | twips |
---|---|---|---|
1 | ≈ 1140539.7437351 | 4 | ≈ 4562158.9749405 |
1.5 | ≈ 1710809.6156027 | 4.5 | ≈ 5132428.846808 |
2 | ≈ 2281079.4874702 | 5 | ≈ 5702698.7186756 |
2.5 | ≈ 2851349.3593378 | 5.5 | ≈ 6272968.5905431 |
3 | ≈ 3421619.2312054 | 6 | ≈ 6843238.4624107 |
A twip (abbreviating "twentieth of a point", "twentieth of an inch point", or "twentieth of an Imperial point"[citation needed]) is a typographical measurement, defined as 1/20 of a typographical point. One twip is 1/1440 inch or 17.639 µm.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
twip | twp | ≡ 1⁄1440 in | = 1.7638×10−5 m | Imperial/US |
twips | chains | twips | chains |
---|---|---|---|
1 | ≈ 8.7677786372015E-7 | 4 | ≈ 3.5071114548806E-6 |
1.5 | ≈ 1.3151667955802E-6 | 4.5 | ≈ 3.9455003867407E-6 |
2 | ≈ 1.7535557274403E-6 | 5 | ≈ 4.3838893186007E-6 |
2.5 | ≈ 2.1919446593004E-6 | 5.5 | ≈ 4.8222782504608E-6 |
3 | ≈ 2.6303335911604E-6 | 6 | ≈ 5.2606671823209E-6 |
chains | twips |
---|---|
1 | ≈ 1,140,539.7437351 |
8.7677786372015 × 10-7 | ≈ 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 …) |