Energy converter
Ethical Tube's free energy converter converts energy, including food energy between joules, kilojoules, calories, kilocalories, kilowatt-hours, and British thermal units as you type. Pick the units, enter a value, and the answer appears instantly in both directions, with nothing sent to a server.
1 J = 0.001 kJ
- Units
- 6
- Price
- Free
- Sign-up
- Not needed
- Precision
- 6 significant digits
- Works offline
- Yes
- Ads in results
- None
All conversions
Energy conversions
Good to know
About energy units
- Food labels use kilocalories (kcal), often written as Calories with a capital C. 1 kcal is 1,000 calories, or 4.184 kilojoules.
- This converter uses the thermochemical calorie (4.184 joules) and the international BTU (1,055.06 joules).
FAQ
Questions, answered
Is the energy converter free?
Yes. It's free, with no sign-up or ads in the results, and it works offline once the page has loaded.
How precise are the results?
Results are calculated with exact conversion factors and rounded to six significant digits, which is more precise than most everyday uses need.
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