Calories to Joules Converter
Convert calories to joules (cal to J) instantly. 1 calories equals 4.184 joules and 1 joules equals 0.239006 calories. Use the swap button to convert the other way.
- Free
- No signup
- Private: runs in your browser
- Works on mobile
Calories to Joules Converter tool
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Quick conversion table
| Calories | Joules |
|---|---|
| 1 | 4.184 |
| 2 | 8.368 |
| 5 | 20.92 |
| 10 | 41.84 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 1,000 | 4,184 |
How to use Calories to Joules Converter
- Type the value you want to convert.
- Choose the "from" and "to" units, or press Swap units.
- Read the converted value and copy it.
Why use DocConvertPRO?
- Free to use with no signup or watermark.
- Everything runs in your browser. Your input is not uploaded.
- Works on phones, tablets and computers.
- Made for Indian users: rupees, lakh/crore formats and local use cases.
About this tool
Multiply the value in calories by 4.184 to get joules.
In electricity bills one "unit" means one kilowatt-hour (kWh).
Frequently asked questions
How many joules are in 1 calories?
1 calories = 4.184 joules.
How do I convert cal to J?
Multiply the value in calories by 4.184 to get joules.
How do I convert J back to cal?
Use the swap button above or open the Joules to Calories converter. 1 joules = 0.239006 calories.
Is this converter accurate?
It uses exact or internationally standard conversion factors and shows up to 10 significant digits.