Calorie to Kilojoule Converter
Free Energy Converter, Convert Joules, Calories, Kilowatt-Hours & BTU Instantly
1Calorie=0.004184Kilojoule
1 Kilojoule = 239.0057361377 Calorie
Calorie
- Symbol
- cal
- System
- Metric/Imperial
- Dimension
- Various
Kilojoule
- Symbol
- kJ
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Calorie | Kilojoule | Kilojoule | Calorie |
|---|---|---|---|
| 1 | 0.004184 | 1 | 239.0057361377 |
| 2 | 0.008368 | 2 | 478.0114722753 |
| 3 | 0.012552 | 3 | 717.017208413 |
| 5 | 0.02092 | 5 | 1195.0286806883 |
| 10 | 0.04184 | 10 | 2390.0573613767 |
| 25 | 0.1046 | 25 | 5975.1434034417 |
| 50 | 0.2092 | 50 | 11950.2868068834 |
| 100 | 0.4184 | 100 | 23900.5736137667 |
| 500 | 2.092 | 500 | 119502.8680688336 |
| 1000 | 4.184 | 1000 | 239005.7361376673 |
Conversion Formula
Kilojoule = Calorie × 0.004184
Calorie = Kilojoule × 239.0057361377
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.004184.
How to convert Calorie to Kilojoule
Multiply the value in calorie by 0.004184 to get kilojoule. For example, 5 Calorie = 0.02092 Kilojoule. All results in the energy converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.00 too early — keep full precision until the final display. For energy, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Kilojoule in 1 Calorie?
- 1 Calorie = 0.004184 Kilojoule.
- How many Calorie in 1 Kilojoule?
- 1 Kilojoule = 239.0057361377 Calorie.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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