Kilocalories to Calories (kcal to cal) Converter
1 kilocalorie equals 1,000 calories — multiply kilocalories by 1,000 to convert kcal to cal. The kilo prefix means one thousand, so a kilocalorie (the "large" or food Calorie) is exactly 1,000 small-c calories.
The formula
To convert kilocalories to calories, multiply by the exact factor:
cal = kcal × 1,000
For example, 250 kcal × 1,000 = 250,000 cal. This is why a food label showing "250 Calories" actually means 250 kcal.
Conversion table
| Kilocalories (kcal) | Calories (cal) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
How to convert online
- Type the number of kilocalories into the first box.
- Read the calorie result instantly in the second box.
- Or enter a calorie value to convert back to kilocalories — it works both ways.
Use the Kilocalorie to Calorie Converter — free and instant in your browser.
Where this conversion is used
Nutrition and food-science figures cause endless confusion because the "Calorie" on a food label is really a kilocalorie. Converting kcal to cal is useful when you reconcile a nutrition label against a scientific calorimetry figure, teach the difference between the two units, or work with lab data that uses small calories.
FAQ
How many calories are in a kilocalorie?
One kilocalorie equals 1,000 calories.
Is a food Calorie the same as a kilocalorie?
Yes. The capital-C "Calorie" used on nutrition labels is a kilocalorie, equal to 1,000 small calories.
How do I convert calories back to kilocalories?
Divide the calorie value by 1,000 (or multiply by 0.001). For example, 50,000 cal = 50 kcal.
Is the conversion exact?
Yes. The kilo prefix is exactly 1,000, so there is no rounding.
Related converters
- Calorie to Kilocalorie Converter
- Kilocalorie to Joule Converter
- Kilocalorie to Kilojoule Converter
- Kilocalorie to Kilowatt-hour Converter
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