Wavelength ↔ Frequency Converter
Bidirectional, real-time, multi-unit (nm · µm · Hz · THz · cm⁻¹)
c = 299,792,458 m/s
Wavelength (λ)
nm
µm
mm
m
Å
Enter a wavelength to convert.
Frequency (f) / Wavenumber
Hz
kHz
MHz
GHz
THz
PHz
cm⁻¹
Enter a frequency or wavenumber.
Photon energy
—
Energy (Joules)
—
Period
—
Spectral band
—
Presets
ArF
193 nm
UV
266 nm
UV
355 nm
Violet
405 nm
Ar⁺
488 nm
Green
532 nm
HeNe
633 nm
NIR
785 nm
Diode
808 nm
Nd:YAG
1064 nm
Telecom
1550 nm
CO₂
10.6 µm