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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 Femtometers (fm) is equal to 1.0E-15 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 858000000000 Femtometers | to common length units |
|---|---|
| 858000000000 fm | = 0.000858 meters (m) |
| 858000000000 fm | = 8.58E-7 kilometers (km) |
| 858000000000 fm | = 0.0858 centimeters (cm) |
| 858000000000 fm | = 0.0028149606299213 feet (ft) |
| 858000000000 fm | = 0.033779527559055 inches (in) |
| 858000000000 fm | = 0.00093832020997375 yards (yd) |
| 858000000000 fm | = 5.3313648293963E-7 miles (mi) |
| 858000000000 fm | = 9.0688087939964E-20 light years (ly) |
| 858000000000 fm | = 3.2428350542154 pixels (PX) |
| 858000000000 fm | = 5.3625E+31 planck length (pl) |