Energy Converter
Convert energy units instantly as you type.
Unit converter
Enter a value to convert.
Invalid Number
Converted Value
Kilojoule (kJ)
1kWh=3600kJ
How it works
Fast, local conversions.
Simply type a number and select your units. The conversion updates instantly without needing to click a button. You can swap units at any time.
Calories are thermochemical calories. BTU values use the International Table BTU.
Quick reference
Common energy conversions.
Questions
About energy conversion.
How do I convert kilowatt-hours to kilojoules?
Enter the energy, choose Kilowatt-hour (kWh) in From, and Kilojoule (kJ) in To. The result updates as you type.
What is the difference between cal and kcal?
A kilocalorie is one thousand thermochemical calories. Food labels that say “calories” usually mean kilocalories.
How precise are the conversion results?
The large result is a concise reading, normally up to two decimal places. The conversion line keeps the full meaningful precision from IngoHub’s conversion.
Can I convert between the same units?
Yes. Selecting the same unit in both dropdowns is valid and returns the exact number you entered.
Does IngoHub store the values I enter?
No. All calculations happen instantly in your browser. We don’t save or transmit the numbers you type.