Calorie to Joule Converter
Convert Calories to Joules
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How to Convert Calories to Joules
To convert calories to joules, multiply the number of calories by 4.184. This is because 1 calorie is defined as the amount of energy needed to raise the temperature of one gram of water by one degree Celsius, which is approximately 4.184 joules.
Formula
Joules = Calories × 4.184
or
J = cal × 4.184
Step-by-step process
- Take the measurement in calories
- Multiply that number by 4.184
- The result is the equivalent energy in joules
Examples
- 10 calories = 10 × 4.184 = 41.84 joules
- 50 calories = 50 × 4.184 = 209.2 joules
- 100 calories = 100 × 4.184 = 418.4 joules
Common Calories to Joules Conversions
Here is a table of common conversions for quick reference:
| Calories (cal) | Joules (J) | Calories (cal) | Joules (J) |
|---|---|---|---|
| 1 | 4.184 | 100 | 418.4 |
| 5 | 20.92 | 250 | 1,046 |
| 10 | 41.84 | 500 | 2,092 |
| 25 | 104.6 | 1,000 | 4,184 |
| 50 | 209.2 | 5,000 | 20,920 |
Other conversions from calories
Calories can be converted to various other units of energy. Here are some common conversions:
Frequently Asked Questions
How many calories are in a joule?
There are approximately 0.239 calories in one joule.