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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.9881000000 Rack Unit | to common length units |
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9881000000 ru | = 439210450 meters (m) |
9881000000 ru | = 439210.45 kilometers (km) |
9881000000 ru | = 43921045000 centimeters (cm) |
9881000000 ru | = 1440979166.6667 feet (ft) |
9881000000 ru | = 17291750000 inches (in) |
9881000000 ru | = 480326388.88889 yards (yd) |
9881000000 ru | = 272912.7209596 miles (mi) |
9881000000 ru | = 4.6423258640736E-8 light years (ly) |
9881000000 ru | = 1660008209134.9 pixels (PX) |
9881000000 ru | = 2.7450653125E+43 planck length (pl) |