Frequency to Wavelength Calculator

This chart shows wavelength in meters and frequency in hertz. By looking on the chart you may convert from wavelength to frequency and frequency to wavelength.
Frequency and wavelength of light are related to one another through the speed at which light travels.

Equation: f * λ = c

where:
f = frequency in Hertz (Hz = ¹/_sec)
λ = wavelength in meters (m)
c = the speed of light and is approximately equal to 3*10^{8 m}/_s
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Frequency / Wavelength Calculator

If you want to convert wavelength to frequency enter the wavelength in microns (μm) and press "Calculate f". The corresponding frequency will be in the "frequency" field in GHz.

OR enter the frequency in gigahertz (GHz) and press "Calculate λ" if you want to convert to wavelength.
Wavelength will be in μm.

Wavelength: (λ)	[μm]	Frequency: (f)	[GHz]
**see nomograph below

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Conversion Chart

Original Nomograph - Maury Microwave Corp. '97

Nomograph conversion from λ = 1 mm to 10 nm


Nomograph conversion from λ = 1000 m to 1 cm


Remember:

Mega-Hertz = MHz = 10⁶ Hz
Giga-Hertz = GHz = 10⁹ Hz
Tera-Hertz = THz = 10¹² Hz
Peta-Hertz = PHz = 10¹⁵ Hz

milli-meters = mm = 10^-3 m
microns = μm = 10^-6 m
nano-meters = nm = 10^-9 m