Energy Converter

Common energy conversions

• 1 joules = 0.001 kJ
• 1 joules = 0.2390057 cal
• 1 joules = 0.0002390057 kcal
• 1 joules = 0.0002777778 Wh
• 1 joules = 2.777778e-7 kWh
• 1 kilojoules = 1,000 J
• 1 kilojoules = 239.0057 cal
• 1 kilojoules = 0.2390057 kcal
• 1 kilojoules = 0.2777778 Wh
• 1 kilojoules = 0.0002777778 kWh
• 1 calories = 0.004184 kJ
• 1 calories = 0.001 kcal
• 1 calories = 0.001162222 Wh
• 1 calories = 0.0000011622 kWh
• 1 kilocalories (food calories) = 1,000 cal
• 1 kilocalories (food calories) = 1.162222 Wh
• 1 kilocalories (food calories) = 0.001162222 kWh
• 1 watt-hours = 0.8604207 kcal
• 1 watt-hours = 0.001 kWh
• 1 kilowatt-hours = 1,000 Wh

Frequently asked questions

How do I use the energy converter?

Convert joules, calories, kilocalories, kWh, BTU and more.

Is it free?

Yes. It is free, open source and needs no sign-up.

Is my data sent anywhere?

No. Everything is calculated in your browser.

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