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A chain (ch) 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. ..more definition+
In relation to the base unit of [length] => (meters), 1 Attometers (am) is equal to 1.0E-18 meters, while 1 Chains (ch) = 20.1168 meters.21 Attometers | to common length units |
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21 am | = 2.1E-17 meters (m) |
21 am | = 2.1E-20 kilometers (km) |
21 am | = 2.1E-15 centimeters (cm) |
21 am | = 6.8897637795276E-17 feet (ft) |
21 am | = 8.2677165354331E-16 inches (in) |
21 am | = 2.2965879265092E-17 yards (yd) |
21 am | = 1.3048795036984E-20 miles (mi) |
21 am | = 2.2196385160131E-33 light years (ly) |
21 am | = 7.9370088739539E-14 pixels (PX) |
21 am | = 1.3125E+18 planck length (pl) |