When classical physics fails at the atomistic level, quantum mechanics starts to play an essential role. This fundamental theory is needed to describe the properties of an atom or explain such phenomena as the photoelectric effect or magnetism. Even if quantum mechanics might sound scary for some people, it becomes much easier to understand particular topics with the assistance of handy calculators available on our site.

Bohr Model CalculatorCompton Wavelength CalculatorDe Broglie Wavelength CalculatorEnergy to Wavelength CalculatorFermi Level CalculatorHeisenberg's Uncertainty Principle CalculatorPhotoelectric Effect CalculatorPhoton Energy CalculatorQuantum Number CalculatorRydberg Equation CalculatorStefan Boltzmann Law CalculatorTwo-Photon Absorption CalculatorWavelength to Energy CalculatorWien's Law Calculator