ENERGY CONVERSION
Kilocalorie to Megajoule.
Convert kilocalorie (kcal) to megajoule (MJ), with the math explained.
1 kcal = 0.004184 MJ
THE MATH, MADE SIMPLE
How to convert kilocalorie to megajoule
Multiply your kilocalorie value by 0.004184 to get the equivalent in megajoule. Both units are normalized through the joule.
MJ = kcal × 0.00418410 kcal = 0.04184 MJ
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
kcal to MJ conversion table
| Kilocalorie (kcal) | Megajoule (MJ) |
|---|---|
| 1 kcal | 0.004184 MJ |
| 2 kcal | 0.008368 MJ |
| 5 kcal | 0.02092 MJ |
| 10 kcal | 0.04184 MJ |
| 20 kcal | 0.08368 MJ |
| 50 kcal | 0.2092 MJ |
| 100 kcal | 0.4184 MJ |
| 500 kcal | 2.092 MJ |
| 1,000 kcal | 4.184 MJ |
About the kilocalorie
The kilocalorie (kcal) is a unit of energy. One kilocalorie equals 4,184 joule (base unit) in this calculator.
All kilocalorie conversionsAbout the megajoule
The megajoule (MJ) is a unit of energy. One megajoule equals 1,000,000 joule (base unit) in this calculator.
All megajoule conversionsCommon questions
What is 1 kcal in MJ?
One kilocalorie equals 0.004184 MJ. 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.
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