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 |
nautical league | 0.0036207 NL; nl | 0.0072415 NL; nl | 0.0108622 NL; nl | 0.0144830 NL; nl | 0.0181037 NL; nl | 0.0217244 NL; nl | 0.0253452 NL; nl | 0.0289659 NL; nl | 0.0325867 NL; nl | 0.0362074 NL; nl | 0.0398282 NL; nl | 0.0434489 NL; nl | 0.0470696 NL; nl | 0.0506904 NL; nl | 0.0543111 NL; nl | 0.0579319 NL; nl | 0.0615526 NL; nl | 0.0651733 NL; nl | 0.0687941 NL; nl | 0.0724148 NL; nl | 0.0760356 NL; nl | 0.0796563 NL; nl | 0.0832771 NL; nl | 0.0868978 NL; nl | 0.0905185 NL; nl | 0.0941393 NL; nl | 0.0977600 NL; nl | 0.1013808 NL; nl | 0.1050015 NL; nl | 0.1086222 NL; nl | 0.1122430 NL; nl | 0.1158637 NL; nl | 0.1194845 NL; nl | 0.1231052 NL; nl | 0.1267260 NL; nl | 0.1303467 NL; nl | 0.1339674 NL; nl | 0.1375882 NL; nl | 0.1412089 NL; nl | 0.1448297 NL; nl | 0.1484504 NL; nl | 0.1520711 NL; nl | 0.1556919 NL; nl | 0.1593126 NL; nl | 0.1629334 NL; nl | 0.1665541 NL; nl | 0.1701749 NL; nl | 0.1737956 NL; nl | 0.1774163 NL; nl | 0.1810371 NL; nl | 0.1846578 NL; nl | 0.1882786 NL; nl | 0.1918993 NL; nl | 0.1955200 NL; nl | 0.1991408 NL; nl | 0.2027615 NL; nl | 0.2063823 NL; nl | 0.2100030 NL; nl | 0.2136238 NL; nl | 0.2172445 NL; nl | 0.2208652 NL; nl | 0.2244860 NL; nl | 0.2281067 NL; nl | 0.2317275 NL; nl | 0.2353482 NL; nl | 0.2389689 NL; nl | 0.2425897 NL; nl | 0.2462104 NL; nl | 0.2498312 NL; nl | 0.2534519 NL; nl | 0.2570726 NL; nl | 0.2606934 NL; nl | 0.2643141 NL; nl | 0.2679349 NL; nl | 0.2715556 NL; nl | 0.2751764 NL; nl | 0.2787971 NL; nl | 0.2824178 NL; nl | 0.2860386 NL; nl | 0.2896593 NL; nl | 0.2932801 NL; nl | 0.2969008 NL; nl | 0.3005215 NL; nl | 0.3041423 NL; nl | 0.3077630 NL; nl | 0.3113838 NL; nl | 0.3150045 NL; nl | 0.3186253 NL; nl | 0.3222460 NL; nl | 0.3258667 NL; nl | 0.3294875 NL; nl | 0.3331082 NL; nl | 0.3367290 NL; nl | 0.3403497 NL; nl | 0.3439704 NL; nl | 0.3475912 NL; nl | 0.3512119 NL; nl | 0.3548327 NL; nl | 0.3584534 NL; nl | 0.3620742 NL; nl |
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 | nautical league | chains | nautical league |
---|---|---|---|
1 | ≈ 0.0036207415406767 | 4 | ≈ 0.014482966162707 |
1.5 | ≈ 0.0054311123110151 | 4.5 | ≈ 0.016293336933045 |
2 | ≈ 0.0072414830813535 | 5 | ≈ 0.018103707703384 |
2.5 | ≈ 0.0090518538516919 | 5.5 | ≈ 0.019914078473722 |
3 | ≈ 0.01086222462203 | 6 | ≈ 0.02172444924406 |
A league is a unit of length (or, in various regions, area). It was common in Europe and Latin America, but is no longer an official unit in any nation.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
nautical league | NL; nl | ≡ 3 nmi | = 5556 m | Imperial/US |
nautical league | chains | nautical league | chains |
---|---|---|---|
1 | ≈ 276.18651835974 | 4 | ≈ 1104.746073439 |
1.5 | ≈ 414.27977753961 | 4.5 | ≈ 1242.8393326188 |
2 | ≈ 552.37303671948 | 5 | ≈ 1380.9325917987 |
2.5 | ≈ 690.46629589936 | 5.5 | ≈ 1519.0258509786 |
3 | ≈ 828.55955507923 | 6 | ≈ 1657.1191101585 |
chains | nautical league |
---|---|
1 | ≈ 0.0036207 |
276.1865184 | ≈ 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 …) |