Calories to Kilocalories converter (cal to kcal)
Convert Calories (cal) to Kilocalories (kcal) 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 Calories to Kilocalories
1 calorie (cal) is equal to 0.001 kilocalories (kcal).
E(kcal) = E(cal) ÷ 1000
Divide calories by 1000:
Example: Convert 2000 cal to kcal:
E(kcal) = 2000 ÷ 1000 = 2 kcal
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.
What is a Kilocalories?
The Kilocalories (kcal) 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 Calories into Kilocalories. One cal equals 0.001 kcal.
Calories to Kilocalories conversion table
Common cal values and the matching kcal result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Calories (cal) | Kilocalories (kcal) |
|---|---|
| 0 cal | 0 kcal |
| 100 cal | 0.1 kcal |
| 500 cal | 0.5 kcal |
| 1000 cal | 1 kcal |
| 5000 cal | 5 kcal |
| 10000 cal | 10 kcal |
How this calculator works
The form on this page is a Calories-to-Kilocalories converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the kcal 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 kcal are in 1 cal?
1 cal = 0.001 kcal.
How do I convert Calories to Kilocalories?
Divide calories by 1000:
Is this cal to kcal 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.