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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.| 1 Femtometers | to common length units |
|---|---|
| 1 fm | = 1.0E-15 meters (m) |
| 1 fm | = 1.0E-18 kilometers (km) |
| 1 fm | = 1.0E-13 centimeters (cm) |
| 1 fm | = 3.2808398950131E-15 feet (ft) |
| 1 fm | = 3.9370078740157E-14 inches (in) |
| 1 fm | = 1.0936132983377E-15 yards (yd) |
| 1 fm | = 6.2137119223733E-19 miles (mi) |
| 1 fm | = 1.056970721911E-31 light years (ly) |
| 1 fm | = 3.7795280352161E-12 pixels (PX) |
| 1 fm | = 6.25E+19 planck length (pl) |
| Femtometers | to Bohr Radius (table conversion) |
|---|---|
| 1 fm | = 1.8897268777744E-5 Bohr |
| 2 fm | = 3.7794537555487E-5 Bohr |
| 3 fm | = 5.6691806333231E-5 Bohr |
| 4 fm | = 7.5589075110974E-5 Bohr |
| 5 fm | = 9.4486343888718E-5 Bohr |
| 6 fm | = 0.00011338361266646 Bohr |
| 7 fm | = 0.0001322808814442 Bohr |
| 8 fm | = 0.00015117815022195 Bohr |
| 9 fm | = 0.00017007541899969 Bohr |
| 10 fm | = 0.00018897268777744 Bohr |
| 20 fm | = 0.00037794537555487 Bohr |
| 30 fm | = 0.00056691806333231 Bohr |
| 40 fm | = 0.00075589075110974 Bohr |
| 50 fm | = 0.00094486343888718 Bohr |
| 60 fm | = 0.0011338361266646 Bohr |
| 70 fm | = 0.001322808814442 Bohr |
| 80 fm | = 0.0015117815022195 Bohr |
| 90 fm | = 0.0017007541899969 Bohr |
| 100 fm | = 0.0018897268777744 Bohr |
| 200 fm | = 0.0037794537555487 Bohr |
| 300 fm | = 0.0056691806333231 Bohr |
| 400 fm | = 0.0075589075110974 Bohr |
| 500 fm | = 0.0094486343888718 Bohr |
| 600 fm | = 0.011338361266646 Bohr |
| 700 fm | = 0.01322808814442 Bohr |
| 800 fm | = 0.015117815022195 Bohr |
| 900 fm | = 0.017007541899969 Bohr |
| 1000 fm | = 0.018897268777744 Bohr |
| 2000 fm | = 0.037794537555487 Bohr |
| 4000 fm | = 0.075589075110974 Bohr |
| 5000 fm | = 0.094486343888718 Bohr |
| 7500 fm | = 0.14172951583308 Bohr |
| 10000 fm | = 0.18897268777744 Bohr |
| 25000 fm | = 0.47243171944359 Bohr |
| 50000 fm | = 0.94486343888718 Bohr |
| 100000 fm | = 1.8897268777744 Bohr |
| 1000000 fm | = 18.897268777744 Bohr |
| 1000000000 fm | = 18897.268777744 Bohr |