Energy unit conversions:
| 1 cm-1 = | 0.124 meV | 0.030 THz | 1.44 Kelvin | |
| 1 meV = | 8.1 cm-1 | 0.242 THz | 11.6 Kelvin | |
| 1 THz = | 33 cm-1 | 4.14 meV | 48 Kelvin | |
| 1 Kelvin = | 0.70 cm-1 | 0.086 meV | 0.021 THz |
Conversions for microns (wavelength) to and from wavenumbers (cm-1):
| microns = 104 / x cm-1 |
| cm-1 = 104 / x microns |
Absorbance units:
| A = log ( 1/T ) Where A is Absorbance and T is Transmittance |
Pressure unit conversions:
| mbar | Pascal N/M2 | Torr mm Hg | micron | inch of Hg | psi lb/in2 | atm | |
|---|---|---|---|---|---|---|---|
| 1 mbar = | 1 | 100 | 0.75 | 750 | 2.95E-2 | 1.45E-2 | 9.87E-4 |
| 1 Pascal 1 N/M2= | 1E-2 | 1 | 7.5E-3 | 7.5 | 2.95E-4 | 1.45E-4 | 9.87E-6 |
| 1 Torr 1 mm Hg = | 1.333 | 133 | 1 | 1E3 | 3.937E-2 | 1.934E-2 | 1.316E-3 |
| 1 micron = | 1.333E-3 | 0.1333 | 1E-3 | 1 | 3.937E-5 | 1.934E-5 | 1.316E-6 |
| 1 inch of Hg = | 33.86 | 3.386E3 | 25.4 | 2.54E4 | 1 | 0.491 | 3.34E-2 |
| 1 psi 1 lb/in2 = | 68.9 | 6.89E3 | 51.71 | 5.171E4 | 2.036 | 1 | 6.8E-2 |
| 1 atm = | 1013 | 1.013E5 | 760 | 7.6E5 | 29.9 | 14.7 | 1 |
For other unit conversions, see Convert Plus.