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 |
attometer | 2.011684 × 1019 am | 4.023368 × 1019 am | 6.035052 × 1019 am | 8.046736 × 1019 am | 1.005842 × 1020 am | 1.2070104 × 1020 am | 1.4081788 × 1020 am | 1.6093472 × 1020 am | 1.8105156 × 1020 am | 2.011684 × 1020 am | 2.2128524 × 1020 am | 2.4140208 × 1020 am | 2.6151892 × 1020 am | 2.8163576 × 1020 am | 3.017526 × 1020 am | 3.2186944 × 1020 am | 3.4198628 × 1020 am | 3.6210312 × 1020 am | 3.8221996 × 1020 am | 4.023368 × 1020 am | 4.2245364 × 1020 am | 4.4257048 × 1020 am | 4.6268732 × 1020 am | 4.8280416 × 1020 am | 5.02921 × 1020 am | 5.2303784 × 1020 am | 5.4315468 × 1020 am | 5.6327152 × 1020 am | 5.8338836 × 1020 am | 6.035052 × 1020 am | 6.2362204 × 1020 am | 6.4373888 × 1020 am | 6.6385572 × 1020 am | 6.8397256 × 1020 am | 7.040894 × 1020 am | 7.2420624 × 1020 am | 7.4432308 × 1020 am | 7.6443992 × 1020 am | 7.8455676 × 1020 am | 8.046736 × 1020 am | 8.2479044 × 1020 am | 8.4490728 × 1020 am | 8.6502412 × 1020 am | 8.8514096 × 1020 am | 9.052578 × 1020 am | 9.2537464 × 1020 am | 9.4549148 × 1020 am | 9.6560832 × 1020 am | 9.8572516 × 1020 am | 1.005842 × 1021 am | 1.02595884 × 1021 am | 1.04607568 × 1021 am | 1.06619252 × 1021 am | 1.08630936 × 1021 am | 1.1064262 × 1021 am | 1.12654304 × 1021 am | 1.14665988 × 1021 am | 1.16677672 × 1021 am | 1.18689356 × 1021 am | 1.2070104 × 1021 am | 1.22712724 × 1021 am | 1.24724408 × 1021 am | 1.26736092 × 1021 am | 1.28747776 × 1021 am | 1.3075946 × 1021 am | 1.32771144 × 1021 am | 1.34782828 × 1021 am | 1.36794512 × 1021 am | 1.38806196 × 1021 am | 1.4081788 × 1021 am | 1.42829564 × 1021 am | 1.44841248 × 1021 am | 1.46852932 × 1021 am | 1.48864616 × 1021 am | 1.508763 × 1021 am | 1.52887984 × 1021 am | 1.54899668 × 1021 am | 1.56911352 × 1021 am | 1.58923036 × 1021 am | 1.6093472 × 1021 am | 1.62946404 × 1021 am | 1.64958088 × 1021 am | 1.66969772 × 1021 am | 1.68981456 × 1021 am | 1.7099314 × 1021 am | 1.73004824 × 1021 am | 1.75016508 × 1021 am | 1.77028192 × 1021 am | 1.79039876 × 1021 am | 1.8105156 × 1021 am | 1.83063244 × 1021 am | 1.85074928 × 1021 am | 1.87086612 × 1021 am | 1.89098296 × 1021 am | 1.9110998 × 1021 am | 1.93121664 × 1021 am | 1.95133348 × 1021 am | 1.97145032 × 1021 am | 1.99156716 × 1021 am | 2.011684 × 1021 am |
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 | attometers | chains | attometers |
---|---|---|---|
1 | ≈ 2.011684E+19 | 4 | ≈ 8.046736E+19 |
1.5 | ≈ 3.017526E+19 | 4.5 | ≈ 9.052578E+19 |
2 | ≈ 4.023368E+19 | 5 | ≈ 1.005842E+20 |
2.5 | ≈ 5.02921E+19 | 5.5 | ≈ 1.1064262E+20 |
3 | ≈ 6.035052E+19 | 6 | ≈ 1.2070104E+20 |
An attometer is a unit of length, a combination of the metric prefix atto (symbol a) and the SI unit of length meter (symbol m), equal to 10−18 meter or 1.0E-18 meter and its symbol is am. Plural name is attometers.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
attometer | am | ≡ 1×10-18 m | ≡ 1×10-18 m | Metric system SI |
attometers | chains | attometers | chains |
---|---|---|---|
1 | ≈ 4.9709596537031E-20 | 4 | ≈ 1.9883838614812E-19 |
1.5 | ≈ 7.4564394805546E-20 | 4.5 | ≈ 2.2369318441664E-19 |
2 | ≈ 9.9419193074061E-20 | 5 | ≈ 2.4854798268515E-19 |
2.5 | ≈ 1.2427399134258E-19 | 5.5 | ≈ 2.7340278095367E-19 |
3 | ≈ 1.4912878961109E-19 | 6 | ≈ 2.9825757922218E-19 |
chains | attometers |
---|---|
1 | ≈ 2.011684 × 1019 |
4.9709596537031 × 10-20 | ≈ 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 …) |