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A city block is between 1⁄20 and 1⁄8 mi (80 and 200 m). In Manhattan, the measurement "block" usually refers to a north–south block, which is 1⁄20 miles or 80 meters. Someti ..more definition+
In relation to the base unit of [length] => (meters), 1 Femtometers (fm) is equal to 1.0E-15 meters, while 1 Blocks (bl) = 80.4672 meters.| 15 Femtometers | to common length units |
|---|---|
| 15 fm | = 1.5E-14 meters (m) |
| 15 fm | = 1.5E-17 kilometers (km) |
| 15 fm | = 1.5E-12 centimeters (cm) |
| 15 fm | = 4.9212598425197E-14 feet (ft) |
| 15 fm | = 5.9055118110236E-13 inches (in) |
| 15 fm | = 1.6404199475066E-14 yards (yd) |
| 15 fm | = 9.32056788356E-18 miles (mi) |
| 15 fm | = 1.5854560828665E-30 light years (ly) |
| 15 fm | = 5.6692920528242E-11 pixels (PX) |
| 15 fm | = 9.375E+20 planck length (pl) |