Joules to Calories Converter
1 joule = 0.239006 calories. Divide the number of joules by 4.184 (or multiply by 0.239006).
Result
1 J = 0.239006 cal
1 J
0.239 cal
Both bars show the same amount: 1 J on top, 0.239 cal below.
Quick challenge
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Guess the conversion before you calculate it. How many can you get in a row?
How it works
Formula: cal = J ÷ 4.184
1 joule equals 0.239006 calories (and 1 calorie equals 4.184 joules). Divide the number of joules by 4.184 (or multiply by 0.239006). For 100 joules: 100 ÷ 4.184 = 23.9006 cal.
Joules to calories conversion table
| J | cal |
|---|---|
| 10 J | 2.39006 cal |
| 20 J | 4.78011 cal |
| 30 J | 7.17017 cal |
| 40 J | 9.56023 cal |
| 50 J | 11.9503 cal |
| 60 J | 14.3403 cal |
| 70 J | 16.7304 cal |
| 80 J | 19.1205 cal |
| 90 J | 21.5105 cal |
| 100 J | 23.9006 cal |
| 110 J | 26.2906 cal |
| 120 J | 28.6807 cal |
| 130 J | 31.0707 cal |
| 140 J | 33.4608 cal |
| 150 J | 35.8509 cal |
| 160 J | 38.2409 cal |
| 170 J | 40.631 cal |
| 180 J | 43.021 cal |
| 190 J | 45.4111 cal |
| 200 J | 47.8011 cal |
| 250 J | 59.7514 cal |
| 300 J | 71.7017 cal |
| 350 J | 83.652 cal |
| 400 J | 95.6023 cal |
| 450 J | 107.553 cal |
| 500 J | 119.503 cal |
| 550 J | 131.453 cal |
| 600 J | 143.403 cal |
| 650 J | 155.354 cal |
| 700 J | 167.304 cal |
| 750 J | 179.254 cal |
| 800 J | 191.205 cal |
| 850 J | 203.155 cal |
| 900 J | 215.105 cal |
| 950 J | 227.055 cal |
| 1,000 J | 239.006 cal |
Frequently asked questions
How many calories are in 1 joule?
1 joule = 0.239006 calories. The other way round, 1 calorie = 4.184 joules.
How do I convert joules to calories?
Divide the number of joules by 4.184 (or multiply by 0.239006). For example, 1 J = 0.239006 cal.
How many calories is 100 joules?
100 joules = 23.9006 calories (100 ÷ 4.184 = 23.9006).
How many calories is 1,000 joules?
1,000 joules = 239.006 calories (1,000 ÷ 4.184 = 239.006).