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 |
foot, metric (short) | 67.0561333 smf | 134.1122667 smf | 201.1684 smf | 268.2245333 smf | 335.2806667 smf | 402.3368 smf | 469.3929333 smf | 536.4490667 smf | 603.5052 smf | 670.5613333 smf | 737.6174667 smf | 804.6736 smf | 871.7297333 smf | 938.7858667 smf | 1,005.842 smf | 1,072.8981333 smf | 1,139.9542667 smf | 1,207.0104 smf | 1,274.0665333 smf | 1,341.1226667 smf | 1,408.1788 smf | 1,475.2349333 smf | 1,542.2910667 smf | 1,609.3472 smf | 1,676.4033333 smf | 1,743.4594667 smf | 1,810.5156 smf | 1,877.5717333 smf | 1,944.6278667 smf | 2,011.684 smf | 2,078.7401333 smf | 2,145.7962667 smf | 2,212.8524 smf | 2,279.9085333 smf | 2,346.9646667 smf | 2,414.0208 smf | 2,481.0769333 smf | 2,548.1330667 smf | 2,615.1892 smf | 2,682.2453333 smf | 2,749.3014667 smf | 2,816.3576 smf | 2,883.4137333 smf | 2,950.4698667 smf | 3,017.526 smf | 3,084.5821333 smf | 3,151.6382667 smf | 3,218.6944 smf | 3,285.7505333 smf | 3,352.8066667 smf | 3,419.8628 smf | 3,486.9189333 smf | 3,553.9750667 smf | 3,621.0312 smf | 3,688.0873333 smf | 3,755.1434667 smf | 3,822.1996 smf | 3,889.2557333 smf | 3,956.3118667 smf | 4,023.368 smf | 4,090.4241333 smf | 4,157.4802667 smf | 4,224.5364 smf | 4,291.5925333 smf | 4,358.6486667 smf | 4,425.7048 smf | 4,492.7609333 smf | 4,559.8170667 smf | 4,626.8732 smf | 4,693.9293333 smf | 4,760.9854667 smf | 4,828.0416 smf | 4,895.0977333 smf | 4,962.1538667 smf | 5,029.21 smf | 5,096.2661333 smf | 5,163.3222667 smf | 5,230.3784 smf | 5,297.4345333 smf | 5,364.4906667 smf | 5,431.5468 smf | 5,498.6029333 smf | 5,565.6590667 smf | 5,632.7152 smf | 5,699.7713333 smf | 5,766.8274667 smf | 5,833.8836 smf | 5,900.9397333 smf | 5,967.9958667 smf | 6,035.052 smf | 6,102.1081333 smf | 6,169.1642667 smf | 6,236.2204 smf | 6,303.2765333 smf | 6,370.3326667 smf | 6,437.3888 smf | 6,504.4449333 smf | 6,571.5010667 smf | 6,638.5572 smf | 6,705.6133333 smf |
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 | feet, metric (short) | chains | feet, metric (short) |
---|---|---|---|
1 | ≈ 67.056133333333 | 4 | ≈ 268.22453333333 |
1.5 | ≈ 100.5842 | 4.5 | ≈ 301.7526 |
2 | ≈ 134.11226666667 | 5 | ≈ 335.28066666667 |
2.5 | ≈ 167.64033333333 | 5.5 | ≈ 368.80873333333 |
3 | ≈ 201.1684 | 6 | ≈ 402.3368 |
≡ 0.30 m
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot, metric (short) | smf | ≡ 0.30 m | ≡ 0.30 m | Metric system SI |
feet, metric (short) | chains | feet, metric (short) | chains |
---|---|---|---|
1 | ≈ 0.014912878961109 | 4 | ≈ 0.059651515844437 |
1.5 | ≈ 0.022369318441664 | 4.5 | ≈ 0.067107955324991 |
2 | ≈ 0.029825757922218 | 5 | ≈ 0.074564394805546 |
2.5 | ≈ 0.037282197402773 | 5.5 | ≈ 0.082020834286101 |
3 | ≈ 0.044738636883328 | 6 | ≈ 0.089477273766655 |
chains | feet, metric (short) |
---|---|
1 | ≈ 67.0561333 |
0.0149129 | ≈ 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 …) |