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The kilometer (SI symbol: km) or kilometre (British spelling) is a unit of length in the metric system, equal to 1000 meters (kilo- being the SI prefix for 1000). It is ..more definition+
In relation to the base unit of [length] => (meters), 1 Zettameters (Zm) is equal to 1.0E+21 meters, while 1 Kilometers (km) = 1000 meters.| 2821008867 Zettameters | to common length units |
|---|---|
| 2821008867 Zm | = 2.821008867E+30 meters (m) |
| 2821008867 Zm | = 2.821008867E+27 kilometers (km) |
| 2821008867 Zm | = 2.821008867E+32 centimeters (cm) |
| 2821008867 Zm | = 9.2552784350394E+30 feet (ft) |
| 2821008867 Zm | = 1.1106334122047E+32 inches (in) |
| 2821008867 Zm | = 3.0850928116798E+30 yards (yd) |
| 2821008867 Zm | = 1.7528936429999E+27 miles (mi) |
| 2821008867 Zm | = 2.9817237786703E+14 light years (ly) |
| 2821008867 Zm | = 1.066208210042E+34 pixels (PX) |
| 2821008867 Zm | = 1.763130541875E+65 planck length (pl) |