# Einstein's Equation Calculator - Calculate Energy and Mass Equivalence

## Atomic physics

Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. It is primarily concerned with the arrangement of electrons around the nucleus and the processes by which these arrangements change.

## Einstein's equation E = mc²

The equivalence of mass and energy is the physical concept of the theory of relativity, according to which the total energy of a physical object (physical system, body) is equal to its mass multiplied by the dimensional factor of the square of the speed of light in vacuum:

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Einstein's equation
energy equivalence
mass equivalence
Einstein's equation calculator

- Mechanics
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