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Energy Conversion Table

Values shown for 1 Joule

Unit NameSymbolValueFormula
British Thermal UnitBTU0.000947817multiply by 1,055.05585
Caloriecal0.239006multiply by 4.184
Electron VolteV6.24151 × 10¹⁸multiply by 1.602176634 × 10⁻¹⁹
JouleJ1base unit
Kilocaloriekcal0.000239006multiply by 4,184
KilojoulekJ0.001multiply by 1,000
Kilowatt-hourkWh2.77778 × 10⁻⁷multiply by 3,600,000
MegajouleMJ0.000001multiply by 1,000,000
Watt-hourWh0.000277778multiply by 3,600