Energy Converter
Convert between joules, calories, kilocalories, watt-hours, kilowatt-hours and BTU.
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Formula
result = value × from_factor_J / to_factor_J
Formula
result = value × from_factor / to_factor
Example
1 kcal = 4,184 J
Frequently Asked Questions
How many joules in a calorie?+
1 cal = 4.184 J.
What is a kWh?+
1 kWh = 3,600,000 J.