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Energy Converter
Convert any energy between 8 units. Type a value, choose the unit it is in and the unit you want, and the answer updates as you type. Open the table to see the same energy in every unit at once.
The same energy in every unit
| Unit | Value |
|---|
Saved setups
Save a set of inputs you reuse — your usual rate, your loan, your room sizes — and load it back in one tap.
Your recent calculations
Results you calculate here are kept on this device so you can come back to them.
Formula
Result = value × (size of the starting unit ÷ size of the target unit)
1 kilocalorie = 4.184 kilojoules
1 kilojoule = 0.239006 kilocalories
How to use it
- Type the value you want to convert.
- Choose its unit from the menu beside the box.
- Choose the unit you want under the result.
- Open the table to compare every unit, or save the setup if you convert the same units often.
Worked examples
1 kilowatt-hours in kilojoules
- Converted
- 3,600 kJ
1000 British thermal units in kilojoules
- Converted
- 1,055.055853 kJ
Good to know
The “calorie” on food labels is a kilocalorie (kcal): 4.184 kilojoules. One kilowatt-hour, the unit on an electricity bill, is 3.6 megajoules.
Questions people ask
What is 1 kilowatt-hours in kilojoules?
1 kWh is 3,600 kJ.
What is 1000 British thermal units in kilojoules?
1,000 BTU is 1,055.06 kJ.
What is 500 kilojoules in kilocalories?
500 kJ is 119.503 kcal.
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