Unit Conversion Table [v 11.12] [r 12.07]

• c = 2.99792458E5 km/s
• h = 6.626069574E10-27 erg*s = 4.1356675169E-15 eV*s

Wavelength/Wavenumber/Frequency

from\to	Å	nm	microns	mm	cm	m	1/cm	Hz	kHz	MHz	GHz	THz
Å	x1	x0.1	x10^-4	x10^-7	x10^-8	x10^-10	10^8/	cx10^13/	cx10^10/	cx10^7/	cx10^4/	cx10/
nm	x10	x1	x10^-3	x10^-6	x10^-7	x10^-9	10^7/	cx10^12/	cx10^9/	cx10^6/	cx10^3/	c/
microns	x10^4	x10^3	x1	x10^-3	x10^-4	x10^-6	10^4/	cx10^9/	cx10^6/	cx10^3/	c/	cx10^-3/
mm	x10^7	x10^6	x10^3	x1	x0.1	x10^-3	10/	cx10^6/	cx10^3/	c/	cx10^-3/	cx10^-6/
cm	x10^8	x10^7	x10^4	x10	x1	x0.01	1/	cx10^5/	cx10^2/	cx0.1/	cx10^-4/	cx10^-7/
m	x10^10	x10^9	x10^6	x10^3	x100	x1	0.01/	cx10^3/	c/	cx10^-3/	cx10^-6/	cx10^-9/
1/cm	10^8/	10^7/	10^4/	10/	1/	0.01/	x1	/(cx10^5)	/(cx10^2)	/(cx0.1)	/(cx10^-4)	/(cx10^-7)
Hz	cx10^13/	cx10^12/	cx10^9/	cx10^6/	cx10^5/	cx10^3/	/(cx10^5)	x1	x10^-3	x10^-6	x10^-9	x10^-12
kHz	cx10^10/	cx10^9/	cx10^6/	cx10^3/	cx10^2/	c/	/(cx10^2)	x10^3	x1	x10^-3	x10^-6	x10^-9
MHz	cx10^7/	cx10^6/	cx10^3/	c/	cx0.1/	cx10^-3/	/(cx0.1)	x10^6	x10^3	x1	x10^-3	x10^-6
GHz	cx10^4/	cx10^3/	c/	cx10^-3/	cx10^-4/	cx10^-6/	/(cx10^-4)	x10^9	x10^6	x10^3	x1	x10^-3
THz	cx10/	c/	cx10^-6/	cx10^-6/	cx10^-7/	cx10^-9/	/(cx10^-7)	x10^12	x10^9	x10^6	x10^3	x1

Energy

from\to	J	erg	eV	1/cm	Hz
J	x1	x10^7	x6.24150934x10^18	x5.03411701x10^22	x1.509190311x10^33
erg	x10^-7	x1	x6.24150934x10^11	x5.03411701x10^15	x1.509190311x10^26
eV	x1.602176565x10^-19	x1.602176565x10^-12	x1	x8.06554429x10^3	x2.417989349x10^14
1/cm	x1.986445684x10^-23	x1.986445684x10^-16	x1.239841930x10^-4	x1	/(cx10^5)
Hz	x6.626069574x10^-34	x6.626069574x10^-27	x4.135667517x10^-15	/(cx10^5)	x1

— Conversion coefficients are based on constant values from the NIST http://physics.nist.gov/cuu/Constants/index.htmlhttp://physics.nist.gov/cuu/Constants/index.html