| 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 |
| link | 100 lnk | 200 lnk | 300 lnk | 400 lnk | 500 lnk | 600 lnk | 700 lnk | 800 lnk | 900 lnk | 1 000 lnk | 1 100 lnk | 1 200 lnk | 1 300 lnk | 1 400 lnk | 1 500 lnk | 1 600 lnk | 1 700 lnk | 1 800 lnk | 1 900 lnk | 2 000 lnk | 2 100 lnk | 2 200 lnk | 2 300 lnk | 2 400 lnk | 2 500 lnk | 2 600 lnk | 2 700 lnk | 2 800 lnk | 2 900 lnk | 3 000 lnk | 3 100 lnk | 3 200 lnk | 3 300 lnk | 3 400 lnk | 3 500 lnk | 3 600 lnk | 3 700 lnk | 3 800 lnk | 3 900 lnk | 4 000 lnk | 4 100 lnk | 4 200 lnk | 4 300 lnk | 4 400 lnk | 4 500 lnk | 4 600 lnk | 4 700 lnk | 4 800 lnk | 4 900 lnk | 5 000 lnk | 5 100 lnk | 5 200 lnk | 5 300 lnk | 5 400 lnk | 5 500 lnk | 5 600 lnk | 5 700 lnk | 5 800 lnk | 5 900 lnk | 6 000 lnk | 6 100 lnk | 6 200 lnk | 6 300 lnk | 6 400 lnk | 6 500 lnk | 6 600 lnk | 6 700 lnk | 6 800 lnk | 6 900 lnk | 7 000 lnk | 7 100 lnk | 7 200 lnk | 7 300 lnk | 7 400 lnk | 7 500 lnk | 7 600 lnk | 7 700 lnk | 7 800 lnk | 7 900 lnk | 8 000 lnk | 8 100 lnk | 8 200 lnk | 8 300 lnk | 8 400 lnk | 8 500 lnk | 8 600 lnk | 8 700 lnk | 8 800 lnk | 8 900 lnk | 9 000 lnk | 9 100 lnk | 9 200 lnk | 9 300 lnk | 9 400 lnk | 9 500 lnk | 9 600 lnk | 9 700 lnk | 9 800 lnk | 9 900 lnk | 10 000 lnk |
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 | links | chains | links |
|---|---|---|---|
| 1 | ≈ 100 | 4 | ≈ 400 |
| 1.5 | ≈ 150 | 4.5 | ≈ 450 |
| 2 | ≈ 200 | 5 | ≈ 500 |
| 2.5 | ≈ 250 | 5.5 | ≈ 550 |
| 3 | ≈ 300 | 6 | ≈ 600 |
The link (usually abbreviated as "l.", "li." or "lnk."), sometimes called a Gunter’s link, is a unit of length formerly used in many English-speaking countries. A link is exactly 66⁄100 of a foot, or exactly 7.92 inches or 20.1168 cm.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| link | lnk | ≡ 1⁄100 ch ≡ 0.66 ft (US) ≡ 7.92 in | ≈ 0.2011684 m | Imperial/US |
| links | chains | links | chains |
|---|---|---|---|
| 1 | ≈ 0.01 | 4 | ≈ 0.04 |
| 1.5 | ≈ 0.015 | 4.5 | ≈ 0.045 |
| 2 | ≈ 0.02 | 5 | ≈ 0.05 |
| 2.5 | ≈ 0.025 | 5.5 | ≈ 0.055 |
| 3 | ≈ 0.03 | 6 | ≈ 0.06 |
| chains | links |
|---|---|
| 1 | ≈ 100 |
| 0.01 | ≈ 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 …) |