foot, metric (short) | 1 smf | 2 smf | 3 smf | 4 smf | 5 smf | 6 smf | 7 smf | 8 smf | 9 smf | 10 smf | 11 smf | 12 smf | 13 smf | 14 smf | 15 smf | 16 smf | 17 smf | 18 smf | 19 smf | 20 smf | 21 smf | 22 smf | 23 smf | 24 smf | 25 smf | 26 smf | 27 smf | 28 smf | 29 smf | 30 smf | 31 smf | 32 smf | 33 smf | 34 smf | 35 smf | 36 smf | 37 smf | 38 smf | 39 smf | 40 smf | 41 smf | 42 smf | 43 smf | 44 smf | 45 smf | 46 smf | 47 smf | 48 smf | 49 smf | 50 smf | 51 smf | 52 smf | 53 smf | 54 smf | 55 smf | 56 smf | 57 smf | 58 smf | 59 smf | 60 smf | 61 smf | 62 smf | 63 smf | 64 smf | 65 smf | 66 smf | 67 smf | 68 smf | 69 smf | 70 smf | 71 smf | 72 smf | 73 smf | 74 smf | 75 smf | 76 smf | 77 smf | 78 smf | 79 smf | 80 smf | 81 smf | 82 smf | 83 smf | 84 smf | 85 smf | 86 smf | 87 smf | 88 smf | 89 smf | 90 smf | 91 smf | 92 smf | 93 smf | 94 smf | 95 smf | 96 smf | 97 smf | 98 smf | 99 smf | 100 smf |
chain | 0.0149129 ch | 0.0298258 ch | 0.0447386 ch | 0.0596515 ch | 0.0745644 ch | 0.0894773 ch | 0.1043902 ch | 0.1193030 ch | 0.1342159 ch | 0.1491288 ch | 0.1640417 ch | 0.1789545 ch | 0.1938674 ch | 0.2087803 ch | 0.2236932 ch | 0.2386061 ch | 0.2535189 ch | 0.2684318 ch | 0.2833447 ch | 0.2982576 ch | 0.3131705 ch | 0.3280833 ch | 0.3429962 ch | 0.3579091 ch | 0.3728220 ch | 0.3877349 ch | 0.4026477 ch | 0.4175606 ch | 0.4324735 ch | 0.4473864 ch | 0.4622992 ch | 0.4772121 ch | 0.4921250 ch | 0.5070379 ch | 0.5219508 ch | 0.5368636 ch | 0.5517765 ch | 0.5666894 ch | 0.5816023 ch | 0.5965152 ch | 0.6114280 ch | 0.6263409 ch | 0.6412538 ch | 0.6561667 ch | 0.6710796 ch | 0.6859924 ch | 0.7009053 ch | 0.7158182 ch | 0.7307311 ch | 0.7456439 ch | 0.7605568 ch | 0.7754697 ch | 0.7903826 ch | 0.8052955 ch | 0.8202083 ch | 0.8351212 ch | 0.8500341 ch | 0.8649470 ch | 0.8798599 ch | 0.8947727 ch | 0.9096856 ch | 0.9245985 ch | 0.9395114 ch | 0.9544243 ch | 0.9693371 ch | 0.9842500 ch | 0.9991629 ch | 1.0140758 ch | 1.0289886 ch | 1.0439015 ch | 1.0588144 ch | 1.0737273 ch | 1.0886402 ch | 1.1035530 ch | 1.1184659 ch | 1.1333788 ch | 1.1482917 ch | 1.1632046 ch | 1.1781174 ch | 1.1930303 ch | 1.2079432 ch | 1.2228561 ch | 1.2377690 ch | 1.2526818 ch | 1.2675947 ch | 1.2825076 ch | 1.2974205 ch | 1.3123333 ch | 1.3272462 ch | 1.3421591 ch | 1.3570720 ch | 1.3719849 ch | 1.3868977 ch | 1.4018106 ch | 1.4167235 ch | 1.4316364 ch | 1.4465493 ch | 1.4614621 ch | 1.4763750 ch | 1.4912879 ch |
≡ 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 |
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 |
feet, metric (short) | chains |
---|---|
1 | ≈ 0.0149129 |
67.0561333 | ≈ 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 …) |