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A rack unit (abbreviated U or RU) is a unit of measure defined as 1.75 inches (44.45 mm). It is most frequently used as a measurement of the overall height of 19-inch and ..more definition+
The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
In relation to the base unit of [length] => (meters), 1 Rack Unit (ru) is equal to 0.04445 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 1809289937 Rack Unit | to common length units |
|---|---|
| 1809289937 ru | = 80422937.69965 meters (m) |
| 1809289937 ru | = 80422.93769965 kilometers (km) |
| 1809289937 ru | = 8042293769.965 centimeters (cm) |
| 1809289937 ru | = 263854782.47917 feet (ft) |
| 1809289937 ru | = 3166257389.75 inches (in) |
| 1809289937 ru | = 87951594.159722 yards (yd) |
| 1809289937 ru | = 49972.49668166 miles (mi) |
| 1809289937 ru | = 8.5004690518603E-9 light years (ly) |
| 1809289937 ru | = 303960747710.27 pixels (PX) |
| 1809289937 ru | = 5.0264336062281E+42 planck length (pl) |