Kilojoule to Calorie Converter
Convert kilojoules to calories with this free energy converter. The exact relationship used on this page is 1 kilojoule = 239.005736138 calories. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Calorie = Kilojoule × 239.005736138
How to convert kilojoules to calories
- Enter the value in kilojoules in the converter.
- Read the equivalent amount in calories.
- Use the swap link if you need calorie to kilojoule instead.
- Check the table for common values without typing.
Worked examples
- 1 kJ = 239.0057361 cal
- 5 kJ = 1,195.028681 cal
- 10 kJ = 2,390.057361 cal
- 25 kJ = 5,975.143403 cal
Conversion table
Common kilojoules values converted to calories.
| kJ | cal |
|---|---|
| 1 | 239.0057361 |
| 2 | 478.0114723 |
| 3 | 717.0172084 |
| 4 | 956.0229446 |
| 5 | 1,195.028681 |
| 6 | 1,434.034417 |
| 7 | 1,673.040153 |
| 8 | 1,912.045889 |
| 9 | 2,151.051625 |
| 10 | 2,390.057361 |
| 20 | 4,780.114723 |
| 50 | 11,950.28681 |
| 100 | 23,900.57361 |
| 250 | 59,751.43403 |
| 500 | 119,502.8681 |
| 1,000 | 239,005.7361 |
About this conversion
Kilojoule (kJ) and Calorie (cal) are both energy units. Energy converters connect food labels (kcal), electricity bills (kWh), physics (joules), and heating (BTU). Bookmark this URL when you convert kilojoules to calories often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the calorie to kilojoule converter.
FAQ
How many calories are in 1 kilojoule?+
1 kilojoule equals 239.005736138 calories.
What is the formula to convert kilojoules to calories?+
Calorie = Kilojoule × 239.005736138
How do I convert kilojoules to calories by hand?+
Multiply the kilojoule value by 239.005736138. Example: 10 kilojoules × 239.005736138 = 2390.05736138 calories.
Is this kJ to cal converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.