Calculateur d'Équivalence Masse-Énergie — Formule

Mass-Energy Equivalence

Einstein showed that mass and energy are interchangeable, related by the speed of light squared.

Formula

E = mc^2

  • *m* = mass in kg
  • *c* = 2.998 x 10^8 m/s

    • One kilogram of matter, if fully converted to energy, yields about 9 x 10^16 joules, roughly the energy of a 21-megaton nuclear weapon.

    Exemple Résolu

    Energy equivalent of 1 kg.

    1. E = mc^2
    2. E = 1 * (2.998e8)^2
    3. E = 8.988e16 J
    4. E = 2.497e10 kWh = 25 billion kWh