Calories to Kilojoules
1 cal = 0.004184 kJ
Converter Calculator
1 Calories (cal) = 0.004184 Kilojoules (kJ)
Explanation
Multiply by 0.004184 (derived from joules) because 1 cal = 4.184 J and 1 kJ = 1000 J.
Common Conversion Values
| Calories (cal) | Kilojoules (kJ) |
|---|---|
| 1 | 0.004184 |
| 5 | 0.02092 |
| 10 | 0.04184 |
| 100 | 0.4184 |
| 1,000 | 4.184 |
| 3,600 | 15.0624 |
| 10,000 | 41.84 |
| 1,000,000 | 4,184 |
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
What defines this conversion?
The factor is derived from exact joule-based energy definitions.
Is the reverse conversion available?
Yes. Use the switch button or open the Kilojoules (kJ) to Calories (cal) hub to view the mirror conversion.
Can I use decimals?
Yes. Decimal inputs are supported so fractional energy values remain precise in calculator output.