Convert photon wavelength (nm, µm) to energy (eV, Joules), wavenumber (cm⁻¹), frequency (THz), and temperature (K). Uses E = hc/λ.
Enter any value in the input field, select your source unit and target unit from the dropdowns, and Converzion.io calculates the result instantly. No button press required.
Wavelength — nm (nanometers), Wavelength — µm (micrometers), Wavelength — m (meters), Energy — eV, Energy — Joules (J), Wavenumber — cm⁻¹, Frequency — THz, Temperature — K (×k_B).
E = hc/λ. Shortcut: E (eV) ≈ 1239.84 / λ (nm). h = 6.62607015e-34 J·s, c = 2.99792458e8 m/s.