| Speed of Light | 3.00 x 108 |
| Gravitational constant | 6.67 x 10-11 Nm2/kg2 |
| Avogadro's constant | 6.02 x 1023 mol-1 |
| Universal gas constant | 8.31 J/mol K |
| Mass-energy relation | 8.99 x 1016 J/kg 931.5 MeV/u |
| Permittivity constant | 8.85 x 10-12 F/m |
| Permeability constant | 1.26 x 10-6 H/m |
| Planck constant | 6.63 x 10-34 J s 4.14 x 10-15 eV s |
| Boltzmann constant | 1.38 x 10-23 J/K 8.62 x 10-5 eV/K |
| Elementary charge | 1.60 x 10-19 C |
| Electron mass | 9.11 x 10-31 kg |
| Proton mass | 1.67 x 10-27 kg |
| Bohr radius | 5.29 x 10-11 m |
| Bohr magneton | 9.27 x 10-24 J/T 5.79 x 10-5 eV/T |