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Home/Converters/Energy Converter

Energy Converter

Convert between joules, calories, BTU, kWh, and other energy units.

Files never leave your deviceNo signup required

From

To

4.184

1 Kilocalories (kcal) = 4.184 Kilojoules (kJ)

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Analyze Energy Usage

Pro includes energy cost calculations, efficiency comparisons, and carbon footprint estimates.

Frequently Asked Questions

How many calories in a joule?▼

1 calorie = 4.184 joules. 1 food Calorie (kcal) = 4,184 joules.

How to Use Energy Converter

1Open the Energy Converter tool above - it loads instantly in your browser.
2Enter your data or upload your file. Everything is processed locally on your device - nothing is uploaded to any server.
3Get your results instantly. Copy, download, or share - completely free with no signup required.

Energy Converter is part of BriskTool's collection of free online tools. All processing runs entirely in your browser for maximum privacy and speed.

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