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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.5169227831 Rack Unit | to common length units |
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5169227831 ru | = 229772177.08795 meters (m) |
5169227831 ru | = 229772.17708795 kilometers (km) |
5169227831 ru | = 22977217708.795 centimeters (cm) |
5169227831 ru | = 753845725.35417 feet (ft) |
5169227831 ru | = 9046148704.25 inches (in) |
5169227831 ru | = 251281908.45139 yards (yd) |
5169227831 ru | = 142773.81162011 miles (mi) |
5169227831 ru | = 2.4286246389171E-8 light years (ly) |
5169227831 ru | = 868430385016.55 pixels (PX) |
5169227831 ru | = 1.4360761067997E+43 planck length (pl) |