QCalcs free

QCalcs is a collection of simple and elegant calculators related to quantum mechanics. It is meant as a handy tool for use in everyday situations such as science research in which you need to quickly calculate and convert values of interest.

This first free version currently offers a simple unit converter for quantized wave energy, wavelength, temperature, and frequency. By default the wave speed is set to the speed of light but this can be changed if you'd like to, for instance, calculate values of phonons. It is very helpful to physicists and materials scientists who focus on light-matter interactions.

Hope you enjoy and please provide feedback and suggestions.