Kilojoules to Calories converter (kJ to cal)
Convert Kilojoules (kJ) to Calories (cal) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert Kilojoules to Calories
1 kilojoule (kJ) is equal to 239.006 calories (cal).
E(cal) = E(kJ) × 239.006
Multiply kilojoules by 239.006:
Example: Convert 1 kJ to calories:
E(cal) = 1 × 239.006 = 239.006 cal
What is a Kilojoules?
The Kilojoules (kJ) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Calories?
The Calories (cal) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts energy from Kilojoules into Calories. One kJ equals 239.0057361 cal.
Kilojoules to Calories conversion table
Common kJ values and the matching cal result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Kilojoules (kJ) | Calories (cal) |
|---|---|
| 0 kJ | 0 cal |
| 1 kJ | 239.0057361 cal |
| 5 kJ | 1195.0286805 cal |
| 10 kJ | 2390.057361 cal |
| 50 kJ | 11950.286805 cal |
| 100 kJ | 23900.57361 cal |
How this calculator works
The form on this page is a Kilojoules-to-Calories converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the cal result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many cal are in 1 kJ?
1 kJ = 239.0057361 cal.
How do I convert Kilojoules to Calories?
Multiply kilojoules by 239.006:
Is this kJ to cal converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.