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The micrometer (symbol: μm) or micrometre (UK & International spelling), also commonly known as a micron, is an SI derived unit of length equaling 1×10−6 of a meter (SI ..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 Micrometers (μm) is equal to 1.0E-6 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 421000 Micrometers | to common length units |
|---|---|
| 421000 μm | = 0.421 meters (m) |
| 421000 μm | = 0.000421 kilometers (km) |
| 421000 μm | = 42.1 centimeters (cm) |
| 421000 μm | = 1.3812335958005 feet (ft) |
| 421000 μm | = 16.574803149606 inches (in) |
| 421000 μm | = 0.46041119860017 yards (yd) |
| 421000 μm | = 0.00026159727193192 miles (mi) |
| 421000 μm | = 4.4498467392453E-17 light years (ly) |
| 421000 μm | = 1591.181302826 pixels (PX) |
| 421000 μm | = 2.63125E+34 planck length (pl) |