Exact tool to convert Joules, Calories, kWh, and BTU. Indispensable for physics, chemistry, and electricity.
Energy represents the capacity to do work. In the SI, the base unit is the Joule (J). In electricity bills, kWh is used: 1 kWh = 3,600,000 J. A 5,500 W shower running for 1 hour consumes 5.5 kWh. For air conditioning, BTU is common: 1 BTU/h ≈ 0.293 W. In nutrition, the dietary Calorie (kcal) measures food energy: 1 kcal = 4,184 J. In chemistry, 1 thermochemical cal = 4.184 J. This converter covers Joules, Calories, kWh, BTU, and electron-volt (eV).
1 thermochemical calorie is equivalent to 4.184 Joules.
The kilowatt-hour is the standard unit used in electricity bills.
1 kWh is equal to 3,600,000 Joules.
British Thermal Unit, commonly used in air conditioning units.
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