Table Of Contents
Kilocalories to calories Conversion
1 kilocalories (kcal) is equal to 1000 calories (cal).
1 kcal = 1000 cal
or
1 cal = 0.001 kcal
Formula
To convert a energy from kilocalories (kcal) to calories (cal), multiply the energy in kilocalories by 1000
e(cal) = e(kcal) × 1000
Examples:
Convert 10 kilocalories to calories:
e(cal) = 10kcal × 1000 = 10000 cal
Conversion table
| Kilocalories (kcal) | Calories (cal) |
|---|---|
| 1 kcal | 1000 cal |
| 2 kcal | 2000 cal |
| 3 kcal | 3000 cal |
| 5 kcal | 5000 cal |
| 10 kcal | 10000 cal |
| 20 kcal | 20000 cal |
| 25 kcal | 25000 cal |
| 50 kcal | 50000 cal |
| 100 kcal | 100000 cal |
| 250 kcal | 250000 cal |
| 500 kcal | 500000 cal |
| 1000 kcal | 1000000 cal |
| Calories (cal) | Kilocalories (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 |
| 1000 cal | 1 kcal |
Frequently asked questions
How do I convert kilocalories to calories?
Multiply the value in kilocalories by 1000 to get the result in calories. For example, 5 kcal × 1000 = 5000 cal.
How many calories are in 1 kilocalories?
1 kilocalories (kcal) is equal to 1000 calories (cal).
How do I convert calories back to kilocalories?
Use the inverse operation: divide the value in calories by 1000 to get the result in kilocalories.
How accurate is the kilocalories to calories conversion?
The converter multiplies by the conversion factor 1000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- NIST Guide to the SI (SP 811), Footnotes (notes 22 and 23)
- CODATA Value: electron volt-joule relationship (NIST Fundamental Physical Constants)