| Constant | Symbol | cgs | SI |
| Speed of Light | c | 2.9979 x 1010 cm s-1 | 2.9979 x 108 m s-1 |
| Boltzmann constant | k | 1.3807 x 10-16 erg K-1 | 1.3807 x 10-23 J K-1 |
| Electron Mass | me | 9.1094 x 10-28 g | 9.1094 x 10-31 kg |
| Proton Mass | mp | 1.6726 x 10-24 g | 1.6726 x 10-27 kg |
| Gravitational Constant | G | 6.6742 x 10-8 dyne cm2 g-2 | 6.6742 x 10-11 m3 s-2 kg-1 |
| Energy of 1 eV | 1.6022 x 10-12 erg | 1.6022 x 10-19 J | |
| Temperature of 1eV | 1.1604 x 104 K | 1.1604 x 104 K |
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Page last updated: 28 August 2007
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