Mass-Energy Calculator — Formula
## Mass-Energy Equivalence
Einstein's equation reveals that mass and energy are interchangeable.
### Formula
**E = mc²**
where c = 299,792,458 m/s is the speed of light. A tiny amount of mass corresponds to an enormous amount of energy. This is the principle behind nuclear power and nuclear weapons.
Einstein's equation reveals that mass and energy are interchangeable.
### Formula
**E = mc²**
where c = 299,792,458 m/s is the speed of light. A tiny amount of mass corresponds to an enormous amount of energy. This is the principle behind nuclear power and nuclear weapons.
Esempio Risolto
1 kg of matter fully converted to energy.
- E = mc²
- E = 1 * (2.998e8)²
- E = 8.988e16 J
- E = 2.497e10 kWh
- That is about 21.5 kilotons of TNT equivalent.