| 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 |
| finger (cloth) | 176.0003500 finger (cloth) | 352.0006999 finger (cloth) | 528.0010499 finger (cloth) | 704.0013998 finger (cloth) | 880.0017498 finger (cloth) | 1,056.0020997 finger (cloth) | 1,232.0024497 finger (cloth) | 1,408.0027997 finger (cloth) | 1,584.0031496 finger (cloth) | 1,760.0034996 finger (cloth) | 1,936.0038495 finger (cloth) | 2,112.0041995 finger (cloth) | 2,288.0045494 finger (cloth) | 2,464.0048994 finger (cloth) | 2,640.0052493 finger (cloth) | 2,816.0055993 finger (cloth) | 2,992.0059493 finger (cloth) | 3,168.0062992 finger (cloth) | 3,344.0066492 finger (cloth) | 3,520.0069991 finger (cloth) | 3,696.0073491 finger (cloth) | 3,872.0076990 finger (cloth) | 4,048.0080490 finger (cloth) | 4,224.0083990 finger (cloth) | 4,400.0087489 finger (cloth) | 4,576.0090989 finger (cloth) | 4,752.0094488 finger (cloth) | 4,928.0097988 finger (cloth) | 5,104.0101487 finger (cloth) | 5,280.0104987 finger (cloth) | 5,456.0108486 finger (cloth) | 5,632.0111986 finger (cloth) | 5,808.0115486 finger (cloth) | 5,984.0118985 finger (cloth) | 6,160.0122485 finger (cloth) | 6,336.0125984 finger (cloth) | 6,512.0129484 finger (cloth) | 6,688.0132983 finger (cloth) | 6,864.0136483 finger (cloth) | 7,040.0139983 finger (cloth) | 7,216.0143482 finger (cloth) | 7,392.0146982 finger (cloth) | 7,568.0150481 finger (cloth) | 7,744.0153981 finger (cloth) | 7,920.0157480 finger (cloth) | 8,096.0160980 finger (cloth) | 8,272.0164479 finger (cloth) | 8,448.0167979 finger (cloth) | 8,624.0171479 finger (cloth) | 8,800.0174978 finger (cloth) | 8,976.0178478 finger (cloth) | 9,152.0181977 finger (cloth) | 9,328.0185477 finger (cloth) | 9,504.0188976 finger (cloth) | 9,680.0192476 finger (cloth) | 9,856.0195976 finger (cloth) | 10,032.0199475 finger (cloth) | 10,208.0202975 finger (cloth) | 10,384.0206474 finger (cloth) | 10,560.0209974 finger (cloth) | 10,736.0213473 finger (cloth) | 10,912.0216973 finger (cloth) | 11,088.0220472 finger (cloth) | 11,264.0223972 finger (cloth) | 11,440.0227472 finger (cloth) | 11,616.0230971 finger (cloth) | 11,792.0234471 finger (cloth) | 11,968.0237970 finger (cloth) | 12,144.0241470 finger (cloth) | 12,320.0244969 finger (cloth) | 12,496.0248469 finger (cloth) | 12,672.0251969 finger (cloth) | 12,848.0255468 finger (cloth) | 13,024.0258968 finger (cloth) | 13,200.0262467 finger (cloth) | 13,376.0265967 finger (cloth) | 13,552.0269466 finger (cloth) | 13,728.0272966 finger (cloth) | 13,904.0276465 finger (cloth) | 14,080.0279965 finger (cloth) | 14,256.0283465 finger (cloth) | 14,432.0286964 finger (cloth) | 14,608.0290464 finger (cloth) | 14,784.0293963 finger (cloth) | 14,960.0297463 finger (cloth) | 15,136.0300962 finger (cloth) | 15,312.0304462 finger (cloth) | 15,488.0307962 finger (cloth) | 15,664.0311461 finger (cloth) | 15,840.0314961 finger (cloth) | 16,016.0318460 finger (cloth) | 16,192.0321960 finger (cloth) | 16,368.0325459 finger (cloth) | 16,544.0328959 finger (cloth) | 16,720.0332458 finger (cloth) | 16,896.0335958 finger (cloth) | 17,072.0339458 finger (cloth) | 17,248.0342957 finger (cloth) | 17,424.0346457 finger (cloth) | 17,600.0349956 finger (cloth) |
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 | finger (cloth) | chains | finger (cloth) |
|---|---|---|---|
| 1 | ≈ 176.00034995626 | 4 | ≈ 704.00139982502 |
| 1.5 | ≈ 264.00052493438 | 4.5 | ≈ 792.00157480315 |
| 2 | ≈ 352.00069991251 | 5 | ≈ 880.00174978128 |
| 2.5 | ≈ 440.00087489064 | 5.5 | ≈ 968.00192475941 |
| 3 | ≈ 528.00104986877 | 6 | ≈ 1056.0020997375 |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| finger (cloth) | ≡ 4 ⁄12 in | = 0.1143 m | Other (Length) |
| finger (cloth) | chains | finger (cloth) | chains |
|---|---|---|---|
| 1 | ≈ 0.0056818068841826 | 4 | ≈ 0.02272722753673 |
| 1.5 | ≈ 0.0085227103262739 | 4.5 | ≈ 0.025568130978822 |
| 2 | ≈ 0.011363613768365 | 5 | ≈ 0.028409034420913 |
| 2.5 | ≈ 0.014204517210457 | 5.5 | ≈ 0.031249937863004 |
| 3 | ≈ 0.017045420652548 | 6 | ≈ 0.034090841305096 |
| chains | finger (cloth) |
|---|---|
| 1 | ≈ 176.0003500 |
| 0.0056818 | ≈ 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 …) |