Joules to Calories Converter
Convert energy from joules (J) to calories (cal). Includes rounding controls, quick references, and input validation.
Joules to Calories Converter tool
Enter joules and convert. Press Ctrl/Cmd + Enter.
Result will appear here.
| Reference | J | cal |
|---|
Privacy: runs locally in your browser. No inputs are stored or transmitted.
cal = J ÷ 4.184
Reverse: J = cal × 4.184
Examples
- 4.184 J = 1 cal
- 100 J ≈ 23.901 cal
- 1000 J ≈ 239.006 cal
FAQ
- How do you convert joules to calories?
Divide joules by 4.184 to get calories.
- What is 1000 joules in calories?
1000 joules equals about 239.006 calories.
- Is this food Calories or small calories?
This page uses small calories (cal). Food Calories are kilocalories (kcal), which are 1,000 small calories.
- Are my inputs stored?
No. All calculations run locally in your browser.