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A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 meters), used especially for measuring the depth of water.
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In relation to the base unit of [length] => (meters), 1 Petameters (Pm) is equal to 1000000000000000 meters, while 1 Fathoms (fath) = 1.8288 meters.| 20900 Petameters | to common length units |
|---|---|
| 20900 Pm | = 2.09E+19 meters (m) |
| 20900 Pm | = 2.09E+16 kilometers (km) |
| 20900 Pm | = 2.09E+21 centimeters (cm) |
| 20900 Pm | = 6.8569553805774E+19 feet (ft) |
| 20900 Pm | = 8.2283464566929E+20 inches (in) |
| 20900 Pm | = 2.2856517935258E+19 yards (yd) |
| 20900 Pm | = 1.298665791776E+16 miles (mi) |
| 20900 Pm | = 2209.068808794 light years (ly) |
| 20900 Pm | = 7.8992135936017E+22 pixels (PX) |
| 20900 Pm | = 1.30625E+54 planck length (pl) |