Unit Conversion Tool

High-precision utility for ultrafast physics: convert between wavelength, energy, and cycle duration using CODATA 2018.

Spatial Units

Wavelength (nm)

nm

Wavelength (µm)

µm

Wavenumber (cm⁻¹)

cm⁻¹

Energy & Frequency

Photon Energy (eV)

eV

Atomic Unit (Hartree)

Eₕ

Frequency (THz)

THz

Temporal Cycle

Period (fs)

fs

Period (ps)

ps

Energy (Joules)

J

EM Spectrum Positioning

Select a value...

UV

IR

100 nm 400 nm 700 nm 2500 nm