Joules to Calories
Convert joules To calories
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Rounding:
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About this tool
Convert joules to calories instantly. 1 cal ≈ 4.184 J. A free online tool for quick and accurate unit conversion.
Use cases
- Comparing calories on a food label to kilojoules used in some countries
- Estimating home electricity use in kWh when appliance specs list joules
- Converting heating system output from BTU to kWh for energy cost comparison
Frequently asked questions
How do I convert joules to calories?
To convert joules to calories, use the formula: 1 cal ≈ 4.184 J. Enter the value in joules and get the result in calories.