Welcome to the Ultrafast Calculator!

This website is here to quickly help you with everyday unit conversions in experimental physics working with electrons and photons. You can input any property into the calculator and the other corresponding properties are calculated. The small script is based on an equation module, mathjs and katex to provide full calculation capabilities! For each input, you can decide between a relativistic electron with its matter-wave properties or a photon.

Just try the following examples to see some of the possibilities:

Input

Particle Property

Interpretation

Particle Selection

Allowed units: eV, u, kg with prefixes (e.g. MeV)
Allowed units: C, e with prefixes (e.g. mC)

Output