Joules to Calories
Convert joules (J) to calories (cal). Type in either box; the other updates as you go.
How to convert joules to calories
To convert joules to calories, divide the number of joules by 4.184.
Example
Convert 5 joules to calories:
Joule to calorie conversion chart
| Joules (J) | Calories (cal) |
|---|---|
| 1 J | 0.2390057 cal |
| 2 J | 0.4780115 cal |
| 3 J | 0.7170172 cal |
| 4 J | 0.9560229 cal |
| 5 J | 1.195029 cal |
| 6 J | 1.434034 cal |
| 7 J | 1.67304 cal |
| 8 J | 1.912046 cal |
| 9 J | 2.151052 cal |
| 10 J | 2.390057 cal |
| 12 J | 2.868069 cal |
| 15 J | 3.585086 cal |
| 20 J | 4.780115 cal |
| 25 J | 5.975143 cal |
| 30 J | 7.170172 cal |
| 40 J | 9.560229 cal |
| 50 J | 11.95029 cal |
| 60 J | 14.34034 cal |
| 70 J | 16.7304 cal |
| 75 J | 17.92543 cal |
| 80 J | 19.12046 cal |
| 90 J | 21.51052 cal |
| 100 J | 23.90057 cal |
| 150 J | 35.85086 cal |
| 200 J | 47.80115 cal |
| 250 J | 59.75143 cal |
| 500 J | 119.5029 cal |
| 1,000 J | 239.0057 cal |
Going the other way? See the calories to joules chart.
About the units
Joule (J)
The joule is the SI unit of energy: the work done by a force of one newton over one meter.
Calorie (cal)
A small calorie (thermochemical) is exactly 4.184 joules, the energy to warm one gram of water by about one degree Celsius.
Frequently asked questions
How many calories are in a joule?
There are 0.2390057361 calories in a joule.
How many joules are in a calorie?
There are 4.184 joules in a calorie.
How do you convert joules to calories?
To convert joules to calories, divide the number of joules by 4.184.
What is 5 joules in calories?
5 joules equals 1.19503 calories.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.