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A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Someti ..more definition+
In relation to the base unit of [length] => (meters), 1 Zeptometers (zm) is equal to 1.0E-21 meters, while 1 Spans (span) = 0.2286 meters.18 Zeptometers | to common length units |
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18 zm | = 1.8E-20 meters (m) |
18 zm | = 1.8E-23 kilometers (km) |
18 zm | = 1.8E-18 centimeters (cm) |
18 zm | = 5.9055118110236E-20 feet (ft) |
18 zm | = 7.0866141732283E-19 inches (in) |
18 zm | = 1.9685039370079E-20 yards (yd) |
18 zm | = 1.1184681460272E-23 miles (mi) |
18 zm | = 1.9025472994398E-36 light years (ly) |
18 zm | = 6.803150463389E-17 pixels (PX) |
18 zm | = 1.125E+15 planck length (pl) |