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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.| 6669781803 Femtometers | to common length units |
|---|---|
| 6669781803 fm | = 6.669781803E-6 meters (m) |
| 6669781803 fm | = 6.669781803E-9 kilometers (km) |
| 6669781803 fm | = 0.0006669781803 centimeters (cm) |
| 6669781803 fm | = 2.1882486230315E-5 feet (ft) |
| 6669781803 fm | = 0.00026258983476378 inches (in) |
| 6669781803 fm | = 7.2941620767717E-6 yards (yd) |
| 6669781803 fm | = 4.144410270893E-9 miles (mi) |
| 6669781803 fm | = 7.0497640873058E-22 light years (ly) |
| 6669781803 fm | = 0.025208627313213 pixels (PX) |
| 6669781803 fm | = 4.168613626875E+29 planck length (pl) |