Convert calories to kilocalories
Enter a value in calories (cal) to get kilocalories (kcal). One calorie is 0.001 kilocalories; one kilocalorie is 1,000 calories.
How to use the Calorie to kilocalorie
- Type the number of calories.
- Click Convert.
- Read the result in kilocalories, plus the same value in every other energy unit.
cal to kcal formula
kilocalories = calories × 0.001. To go the other way, calories = kilocalories × 1,000 (see kilocalories to calories).
Worked example
12 cal × 0.001 = 0.012 kcal.
Calories to kilocalories conversion table
| Calories | Kilocalories |
|---|---|
| 0.1 cal | 0.0001 kcal |
| 0.5 cal | 0.0005 kcal |
| 1 cal | 0.001 kcal |
| 2 cal | 0.002 kcal |
| 3 cal | 0.003 kcal |
| 5 cal | 0.005 kcal |
| 10 cal | 0.01 kcal |
| 20 cal | 0.02 kcal |
| 25 cal | 0.025 kcal |
| 50 cal | 0.05 kcal |
| 100 cal | 0.1 kcal |
| 250 cal | 0.25 kcal |
| 500 cal | 0.5 kcal |
| 1,000 cal | 1 kcal |
About the calorie
The small (gram) calorie, 4.184 J. Food "calories" are actually kilocalories.
About the kilocalorie
The food Calorie: 1,000 small calories, 4,184 J. Nutrition labels worldwide.
Related conversions
Frequently asked questions
How many kilocalories in a calorie?
0.001 kilocalories.
How many calories in a kilocalorie?
1,000 calories.
Is the factor exact?
The factor 0.001 is derived from the units' exact definitions; only the display is rounded.
Privacy
This tool runs entirely inside your browser using WebAssembly and the Canvas/File APIs. Your files are never uploaded to ToolFlint or any third party; you can verify this in your browser's network tab or by switching to airplane mode after the page loads. Read how we process files.
Last updated 2026-09-23.