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A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
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 Fermi (fermi) is equal to 1.0E-15 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 1 Fermi | to common length units |
|---|---|
| 1 fermi | = 1.0E-15 meters (m) |
| 1 fermi | = 1.0E-18 kilometers (km) |
| 1 fermi | = 1.0E-13 centimeters (cm) |
| 1 fermi | = 3.2808398950131E-15 feet (ft) |
| 1 fermi | = 3.9370078740157E-14 inches (in) |
| 1 fermi | = 1.0936132983377E-15 yards (yd) |
| 1 fermi | = 6.2137119223733E-19 miles (mi) |
| 1 fermi | = 1.056970721911E-31 light years (ly) |
| 1 fermi | = 3.7795280352161E-12 pixels (PX) |
| 1 fermi | = 6.25E+19 planck length (pl) |
| Fermi | to Bohr Radius (table conversion) |
|---|---|
| 1 fermi | = 1.8897268777744E-5 Bohr |
| 2 fermi | = 3.7794537555487E-5 Bohr |
| 3 fermi | = 5.6691806333231E-5 Bohr |
| 4 fermi | = 7.5589075110974E-5 Bohr |
| 5 fermi | = 9.4486343888718E-5 Bohr |
| 6 fermi | = 0.00011338361266646 Bohr |
| 7 fermi | = 0.0001322808814442 Bohr |
| 8 fermi | = 0.00015117815022195 Bohr |
| 9 fermi | = 0.00017007541899969 Bohr |
| 10 fermi | = 0.00018897268777744 Bohr |
| 20 fermi | = 0.00037794537555487 Bohr |
| 30 fermi | = 0.00056691806333231 Bohr |
| 40 fermi | = 0.00075589075110974 Bohr |
| 50 fermi | = 0.00094486343888718 Bohr |
| 60 fermi | = 0.0011338361266646 Bohr |
| 70 fermi | = 0.001322808814442 Bohr |
| 80 fermi | = 0.0015117815022195 Bohr |
| 90 fermi | = 0.0017007541899969 Bohr |
| 100 fermi | = 0.0018897268777744 Bohr |
| 200 fermi | = 0.0037794537555487 Bohr |
| 300 fermi | = 0.0056691806333231 Bohr |
| 400 fermi | = 0.0075589075110974 Bohr |
| 500 fermi | = 0.0094486343888718 Bohr |
| 600 fermi | = 0.011338361266646 Bohr |
| 700 fermi | = 0.01322808814442 Bohr |
| 800 fermi | = 0.015117815022195 Bohr |
| 900 fermi | = 0.017007541899969 Bohr |
| 1000 fermi | = 0.018897268777744 Bohr |
| 2000 fermi | = 0.037794537555487 Bohr |
| 4000 fermi | = 0.075589075110974 Bohr |
| 5000 fermi | = 0.094486343888718 Bohr |
| 7500 fermi | = 0.14172951583308 Bohr |
| 10000 fermi | = 0.18897268777744 Bohr |
| 25000 fermi | = 0.47243171944359 Bohr |
| 50000 fermi | = 0.94486343888718 Bohr |
| 100000 fermi | = 1.8897268777744 Bohr |
| 1000000 fermi | = 18.897268777744 Bohr |
| 1000000000 fermi | = 18897.268777744 Bohr |