UnitConConvert Calories to Joules
Convert dietary Calories (kilocalories) to joules for nutrition labels, exercise comparisons, and science references. One food Calorie equals one kilocalorie.
Formula
Multiply kilocalories by 4184 to get joules. To reverse, divide joules by 4184 to get kilocalories.
Quick reference
| Kilocalorie (kcal) | Joule (J) |
|---|---|
| 100 | 418,400 |
| 200 | 836,800 |
| 300 | 1,255,200 |
| 500 | 2,092,000 |
| 1000 | 4,184,000 |
| 1500 | 6,276,000 |
| 2000 | 8,368,000 |
| 2500 | 10,460,000 |
| 3000 | 12,552,000 |
| 5000 | 20,920,000 |