THE RIGHT UNIT. THE CLEAR ANSWER.

Megajoule converter.

Convert work, heat, and electrical energy. Calories use the thermochemical convention; BTU uses the international table.

Energy converter
MJ
1,000,000J
THE RESULT

1 MJ = 1,000,000 J

Calculated in your browserFormula & conversion table

ONE VALUE, EVERY UNIT

Megajoule equivalents

Convert toResultCalculator
Joule (J)1,000,000 J
Kilojoule (kJ)1,000 kJ
Calorie (thermochemical) (cal)239,005.7361 cal
Kilocalorie (kcal)239.0057361 kcal
Watt-hour (Wh)277.7777778 Wh
Kilowatt-hour (kWh)0.2777777778 kWh
BTU (IT) (BTU)947.8171203 BTU
Electronvolt (eV)6.241509074e24 eV

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About energy conversions

Convert work, heat, and electrical energy. Calories use the thermochemical convention; BTU uses the international table.

Each unit is defined relative to one common base unit, so the same factors work consistently in both directions. Select any unit above to see its conversion formula, a worked example, and a reference table.

How precision and conventions work