ENERGY CONVERSION
Calorie (thermochemical) to Kilojoule.
Convert calorie (thermochemical) (cal) to kilojoule (kJ), with the math explained.
1 cal = 0.004184 kJ
THE MATH, MADE SIMPLE
How to convert calorie (thermochemical) to kilojoule
Multiply your calorie (thermochemical) value by 0.004184 to get the equivalent in kilojoule. Both units are normalized through the joule.
kJ = cal × 0.00418410 cal = 0.04184 kJ
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
cal to kJ conversion table
| Calorie (thermochemical) (cal) | Kilojoule (kJ) |
|---|---|
| 1 cal | 0.004184 kJ |
| 2 cal | 0.008368 kJ |
| 5 cal | 0.02092 kJ |
| 10 cal | 0.04184 kJ |
| 20 cal | 0.08368 kJ |
| 50 cal | 0.2092 kJ |
| 100 cal | 0.4184 kJ |
| 500 cal | 2.092 kJ |
| 1,000 cal | 4.184 kJ |
About the calorie (thermochemical)
The calorie (thermochemical) (cal) is a unit of energy. One calorie (thermochemical) equals 4.184 joule (base unit) in this calculator.
All calorie (thermochemical) conversionsAbout the kilojoule
The kilojoule (kJ) is a unit of energy. One kilojoule equals 1,000 joule (base unit) in this calculator.
All kilojoule conversionsCommon questions
What is 1 cal in kJ?
One calorie (thermochemical) equals 0.004184 kJ. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
BROWSE BY UNIT