Joules to Calories
One joule is 0.2390057 calories. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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1 joule = 0.2390057 calories · open this conversion
Formula
calories = joules × 0.239005736
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
Joules to Calories table
| Joules | Calories |
|---|---|
| 1 J | 0.2390057 cal |
| 2 J | 0.4780115 cal |
| 5 J | 1.195029 cal |
| 10 J | 2.390057 cal |
| 20 J | 4.780115 cal |
| 25 J | 5.975143 cal |
| 50 J | 11.95029 cal |
| 100 J | 23.90057 cal |
| 150 J | 35.85086 cal |
| 200 J | 47.80115 cal |
| 250 J | 59.75143 cal |
| 300 J | 71.70172 cal |
| 400 J | 95.60229 cal |
| 500 J | 119.5029 cal |
| 600 J | 143.4034 cal |
| 800 J | 191.2046 cal |
| 1,000 J | 239.0057 cal |
| 1,500 J | 358.5086 cal |
| 2,000 J | 478.0115 cal |
| 2,500 J | 597.5143 cal |
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Other energy conversions
⇄ Calories to JoulesJoules to KilojoulesJoules to KilocaloriesJoules to Watt hoursJoules to Kilowatt hours
Frequently asked questions
▸How many calories are in a joule?
One joule is 0.2390057 calories. calories = joules × 0.239005736.
▸How do I convert joules to calories?
Multiply the number of joules by 0.239005736. For example, 10 J × 0.239005736 = 2.390057 cal.
▸What is the difference between joules and calories?
Joule (J) and Calorie (cal) both measure energy. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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