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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 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Centiinch (cin) = 0.000254 meters.| 4 Bohr Radius | to common length units |
|---|---|
| 4 Bohr | = 2.116708E-10 meters (m) |
| 4 Bohr | = 2.116708E-13 kilometers (km) |
| 4 Bohr | = 2.116708E-8 centimeters (cm) |
| 4 Bohr | = 6.9445800524934E-10 feet (ft) |
| 4 Bohr | = 8.3334960629921E-9 inches (in) |
| 4 Bohr | = 2.3148600174978E-10 yards (yd) |
| 4 Bohr | = 1.3152613735783E-13 miles (mi) |
| 4 Bohr | = 2.2372983828348E-26 light years (ly) |
| 4 Bohr | = 8.0001572283663E-7 pixels (PX) |
| 4 Bohr | = 1.3229425E+25 planck length (pl) |