Comparison of Units

The following table is meant as a rough estimation for comparing frequently used units of energy or frequency.

WavelengthFrequencyWave NumberEnergyTemperature
1 cm30 GHz1 cm-11/8 meV1.5 K
500 nm600 THz20000 cm-12.5 eV30000 K

To obtain more precise information please use the calculator:

Calculate between 
Molecular weight input for calculation of magnetic susceptibility: 
Only when concerning per cm3 units or SI unitless absolute magnetic susceptibility or wanting such items
kind of sensible, you also have to input a density of the sample (g/cm3): 


This value corresponds to:

Original creator: Frank Bruchhauuser.
Addition of magnetic susceptibility by: Jun Lu.