UnitSnapCalories to Joules
1 cal = 4.184 J
How to convert calories to joules
J = cal × 4.184
Example: 5 cal = 20.92 J
Calories to Joules conversion table
| Calories (cal) | Joules (J) |
|---|---|
| 1 cal | 4.184 J |
| 2 cal | 8.368 J |
| 3 cal | 12.552 J |
| 4 cal | 16.736 J |
| 5 cal | 20.92 J |
| 6 cal | 25.104 J |
| 7 cal | 29.288 J |
| 8 cal | 33.472 J |
| 9 cal | 37.656 J |
| 10 cal | 41.84 J |
| 15 cal | 62.76 J |
| 20 cal | 83.68 J |
| 25 cal | 104.6 J |
| 30 cal | 125.52 J |
| 40 cal | 167.36 J |
| 50 cal | 209.2 J |
| 75 cal | 313.8 J |
| 100 cal | 418.4 J |
| 250 cal | 1,046 J |
| 500 cal | 2,092 J |
| 1,000 cal | 4,184 J |
About the units
Calories: The (small) calorie is the energy needed to heat 1 gram of water by 1 °C, exactly 4.184 joules (thermochemical).
Joules: The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter.
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Frequently asked questions
How many joules are in 1 calorie?
1 calorie equals 4.184 joules.
How many calories are in 1 joule?
1 joule equals 0.2390057 calories.
How do I convert calories to joules?
Use the formula J = cal × 4.184.
What is 10 calories in joules?
10 calories equals 41.84 joules.
Related conversions
Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated