Joule to Calorie Converter - Convert J to cal, kcal & More Energy Units
Result:
1 J = 0.23900574 cal
How Energy Conversion Works
1
Input Energy
Enter energy value
2
Select Units
Choose from and to units
3
Apply Formula
Use conversion factors
E₂ = E₁ × (f₁/f₂)
Energy conversion formula
Key Conversion Formulas:
Joule to Calorie: cal = J ÷ 4.184
Calorie to Joule: J = cal × 4.184
Joule to Kilocalorie: kcal = J ÷ 4184
Kilocalorie to Joule: J = kcal × 4184
Energy Conversion Table
| Joules (J) | Calories (cal) | Kilocalories (kcal) | BTU | Wh | ft⋅lbf |
|---|---|---|---|---|---|
| 1 | 0.239 | 0.000239 | 0.000948 | 0.000278 | 0.738 |
| 4.184 | 1.000 | 0.001000 | 0.003966 | 0.001162 | 3.086 |
| 10 | 2.390 | 0.002390 | 0.009478 | 0.002778 | 7.376 |
| 50 | 11.950 | 0.011950 | 0.047391 | 0.013889 | 36.878 |
| 100 | 23.901 | 0.023901 | 0.094781 | 0.027778 | 73.756 |
| 418.4 | 100.000 | 0.100000 | 0.396565 | 0.116222 | 308.596 |
| 1000 | 239.006 | 0.239006 | 0.947813 | 0.277778 | 737.561 |
| 2000 | 478.011 | 0.478011 | 1.895627 | 0.555556 | 1475.122 |
| 4184 | 1000.000 | 1.000000 | 3.965651 | 1.162222 | 3085.955 |
| 10000 | 2390.057 | 2.390057 | 9.478134 | 2.777778 | 7375.610 |
| 20920 | 5000.000 | 5.000000 | 19.828256 | 5.811111 | 15429.777 |
| 41840 | 10000.000 | 10.000000 | 39.656512 | 11.622222 | 30859.554 |
| 100000 | 23900.574 | 23.900574 | 94.781339 | 27.777778 | 73756.103 |
| 418400 | 100000.000 | 100.000000 | 396.565124 | 116.222222 | 308595.536 |
| 1000000 | 239005.736 | 239.005736 | 947.813394 | 277.777778 | 737561.033 |
Energy Units Progression Chart
1 J
Calories:0.239
Kilocalories:0.000239
10 J
Calories:2.390
Kilocalories:0.002390
100 J
Calories:23.900
Kilocalories:0.023900
1000 J
Calories:239.000
Kilocalories:0.239000
4184 J
Calories:1000.000
Kilocalories:1.000000
10000 J
Calories:2390.000
Kilocalories:2.390000
Practice Problems
Problem 1:
Convert 1000 J to calories
Solution: 1000 ÷ 4.184 = 239.01 cal
Problem 2:
Convert 500 cal to joules
Solution: 500 × 4.184 = 2092 J
Problem 3:
Convert 2 kcal to joules
Solution: 2 × 4184 = 8368 J
Problem 4:
Convert 4184 J to kcal
Solution: 4184 ÷ 4184 = 1 kcal
Problem 5:
Convert 1 BTU to joules
Solution: 1 × 1055.06 = 1055.06 J
Daily Uses of Energy Conversion
Food nutrition labels show energy content in calories and joules
Exercise machines display calories burned during workouts
Heating bills measure energy consumption in BTU or kWh
Physics experiments require precise energy unit conversions
Battery capacity specifications use watt-hours for energy storage
Export Options
Reverse Conversion
calorie to joule →Popular Converters
Quick Reference
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