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 (American, English) | 57,239.5504339 pt | 114,479.1008678 pt | 171,718.6513018 pt | 228,958.2017357 pt | 286,197.7521696 pt | 343,437.3026035 pt | 400,676.8530374 pt | 457,916.4034713 pt | 515,155.9539053 pt | 572,395.5043392 pt | 629,635.0547731 pt | 686,874.605207 pt | 744,114.1556409 pt | 801,353.7060748 pt | 858,593.2565088 pt | 915,832.8069427 pt | 973,072.3573766 pt | 1,030,311.9078105 pt | 1,087,551.4582444 pt | 1,144,791.0086783 pt | 1,202,030.5591122 pt | 1,259,270.1095462 pt | 1,316,509.6599801 pt | 1,373,749.210414 pt | 1,430,988.7608479 pt | 1,488,228.3112818 pt | 1,545,467.8617157 pt | 1,602,707.4121497 pt | 1,659,946.9625836 pt | 1,717,186.5130175 pt | 1,774,426.0634514 pt | 1,831,665.6138853 pt | 1,888,905.1643192 pt | 1,946,144.7147532 pt | 2,003,384.2651871 pt | 2,060,623.815621 pt | 2,117,863.3660549 pt | 2,175,102.9164888 pt | 2,232,342.4669227 pt | 2,289,582.0173567 pt | 2,346,821.5677906 pt | 2,404,061.1182245 pt | 2,461,300.6686584 pt | 2,518,540.2190923 pt | 2,575,779.7695262 pt | 2,633,019.3199602 pt | 2,690,258.8703941 pt | 2,747,498.420828 pt | 2,804,737.9712619 pt | 2,861,977.5216958 pt | 2,919,217.0721297 pt | 2,976,456.6225637 pt | 3,033,696.1729976 pt | 3,090,935.7234315 pt | 3,148,175.2738654 pt | 3,205,414.8242993 pt | 3,262,654.3747332 pt | 3,319,893.9251672 pt | 3,377,133.4756011 pt | 3,434,373.026035 pt | 3,491,612.5764689 pt | 3,548,852.1269028 pt | 3,606,091.6773367 pt | 3,663,331.2277707 pt | 3,720,570.7782046 pt | 3,777,810.3286385 pt | 3,835,049.8790724 pt | 3,892,289.4295063 pt | 3,949,528.9799402 pt | 4,006,768.5303742 pt | 4,064,008.0808081 pt | 4,121,247.631242 pt | 4,178,487.1816759 pt | 4,235,726.7321098 pt | 4,292,966.2825437 pt | 4,350,205.8329777 pt | 4,407,445.3834116 pt | 4,464,684.9338455 pt | 4,521,924.4842794 pt | 4,579,164.0347133 pt | 4,636,403.5851472 pt | 4,693,643.1355812 pt | 4,750,882.6860151 pt | 4,808,122.236449 pt | 4,865,361.7868829 pt | 4,922,601.3373168 pt | 4,979,840.8877507 pt | 5,037,080.4381847 pt | 5,094,319.9886186 pt | 5,151,559.5390525 pt | 5,208,799.0894864 pt | 5,266,038.6399203 pt | 5,323,278.1903542 pt | 5,380,517.7407882 pt | 5,437,757.2912221 pt | 5,494,996.841656 pt | 5,552,236.3920899 pt | 5,609,475.9425238 pt | 5,666,715.4929577 pt | 5,723,955.0433917 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 (American, English) | chains | points (American, English) |
---|---|---|---|
1 | ≈ 57239.550433917 | 4 | ≈ 228958.20173567 |
1.5 | ≈ 85859.325650875 | 4.5 | ≈ 257577.97695262 |
2 | ≈ 114479.10086783 | 5 | ≈ 286197.75216958 |
2.5 | ≈ 143098.87608479 | 5.5 | ≈ 314817.52738654 |
3 | ≈ 171718.65130175 | 6 | ≈ 343437.3026035 |
In typography, the point is the smallest unit of measure. It is used for measuring font size, leading, and other items on a printed page.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (American, English) | pt | ≡ 1⁄72.272 in | ≈ 0.000351450 m | Other (Length) |
points (American, English) | chains | points (American, English) | chains |
---|---|---|---|
1 | ≈ 1.7470437702939E-5 | 4 | ≈ 6.9881750811758E-5 |
1.5 | ≈ 2.6205656554409E-5 | 4.5 | ≈ 7.8616969663227E-5 |
2 | ≈ 3.4940875405879E-5 | 5 | ≈ 8.7352188514697E-5 |
2.5 | ≈ 4.3676094257349E-5 | 5.5 | ≈ 9.6087407366167E-5 |
3 | ≈ 5.2411313108818E-5 | 6 | ≈ 0.00010482262621764 |
chains | points (American, English) |
---|---|
1 | ≈ 57,239.5504339 |
1.7470437702939 × 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 …) |