Kilocalories to Calories Converter
How to convert kilocalories to calories
calories = kilocalories × 1,000
To convert kilocalories to calories, multiply the number of kilocalories by 1,000.
1 kcal = 1,000 cal
Examples
- A common daily reference intake: 2,000 kcal × 1,000 = 2,000,000 cal
- 500 kcal × 1,000 = 500,000 cal
Good to know
One kilocalorie is 1000 calories. The "Calories" on food labels are kilocalories, so a 250 Calorie snack contains 250,000 small calories.
The kilocalorie is the food "Calorie" (capital C) shown on nutrition labels. It is based here on the thermochemical calorie, so 1 kcal is exactly 4.184 kJ.
This is the thermochemical calorie, exactly 4.184 J. It is the small calorie: the "Calories" on food labels are kilocalories, 1000 times larger. The International Table calorie (4.1868 J) is slightly different.
Kilocalories to calories conversion table
| Kilocalories (kcal) | Calories (cal) |
|---|---|
| 1 kcal | 1,000 cal |
| 10 kcal | 10,000 cal |
| 50 kcal | 50,000 cal |
| 100 kcal | 100,000 cal |
| 150 kcal | 150,000 cal |
| 200 kcal | 200,000 cal |
| 250 kcal | 250,000 cal |
| 300 kcal | 300,000 cal |
| 400 kcal | 400,000 cal |
| 500 kcal | 500,000 cal |
| 1,000 kcal | 1,000,000 cal |
| 1,500 kcal | 1,500,000 cal |
| 2,000 kcal | 2,000,000 cal |
| 2,500 kcal | 2,500,000 cal |
| 3,000 kcal | 3,000,000 cal |
Unit definitions
- Kilocalorie (kcal)
- A kilocalorie is 1000 calories, exactly 4184 joules using the thermochemical calorie. It is the unit of food energy on nutrition labels.
- Calorie (cal)
- The thermochemical calorie is defined as exactly 4.184 joules, roughly the energy needed to heat one gram of water by one degree Celsius.