Home Useful FTIR Info & Links IR Unit Conversions
Useful FTIR Info & Links

Energy unit conversions:

1 cm-1 = 0.124 meV0.030 THz1.44 Kelvin
1 meV =8.1 cm-1 0.242 THz11.6 Kelvin
1 THz =33 cm-14.14 meV 48 Kelvin
1 Kelvin =0.70 cm-10.086 meV0.021 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:


mbarPascal
N/M2		Torr
mm Hg		microninch of Hgpsi
lb/in2		atm
1 mbar =11000.757502.95E-21.45E-29.87E-4
1 Pascal
1 N/M2=		1E-217.5E-37.52.95E-41.45E-49.87E-6
1 Torr
1 mm Hg =		1.33313311E33.937E-21.934E-21.316E-3
1 micron =1.333E-30.13331E-313.937E-51.934E-51.316E-6
1 inch of Hg =33.863.386E325.42.54E410.4913.34E-2
1 psi
1 lb/in2 =		68.96.89E351.715.171E42.03616.8E-2
1 atm =10131.013E57607.6E529.914.71
Display # 
# Web Link Hits
1   Link   ConvertPlus
For many other unit conversions. 		111
 

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