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Frequency / Wavelength / Energy Converter

Convert between spectral units for electromagnetic radiation

Wavelength (nm)

Wavelength (µm)

Frequency (THz)

Wavenumber (cm⁻¹)

Photon Energy (eV)

c = λν, E = hν = hc/λ
c = 299,792,458 m/s · h = 6.626×10⁻³⁴ J·s

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