Convert Kilocalories to Joules
Convert kilocalories to joules (kcal to J) instantly. Free, accurate kilocalories to joules calculator with conversion formula and chart.
1 kcal = 4184 J
Conversion formula
1 kilocalorie = 4,184 joules
Multiply a value in kilocalories by 4,184 to get joules; divide by the same number to convert back.
Kilocalories to Joules conversion table
| Kilocalories (kcal) | Joules (J) |
|---|---|
| 1 kcal | 4,184 J |
| 2 kcal | 8,368 J |
| 5 kcal | 20,920 J |
| 10 kcal | 41,840 J |
| 25 kcal | 104,600 J |
| 50 kcal | 209,200 J |
| 100 kcal | 418,400 J |
| 500 kcal | 2,092,000 J |
| 1,000 kcal | 4,184,000 J |
- For example, 12 kilocalories is 50,208 joules.
- A value of 75 kilocalories converts to 313,800 joules.
- Going the other way, 1 joule is 0.000239006 kilocalories.
More energy conversions
About Kilocalories to Joules
Easily convert kilocalories (kcal) to joules (J) with this free, instant calculator. Enter a value in kilocalories to see the equivalent in joules right away — accurate and calculated in your browser.
How to use Kilocalories to Joules
- 1
Enter the number of kilocalories you want to convert.
- 2
The equivalent value in joules appears instantly.
- 3
Switch units anytime to convert in either direction.
How to convert Kilocalories to Joules
Enter any value in kilocalories (kcal) and this calculator instantly shows the equivalent in joules (J) using the exact internationally agreed conversion factor — no rounding tricks, no ads in the way, and it works offline once the page is loaded.
Use the swap button to convert in the other direction (joules to kilocalories), or switch to any other energy unit from the dropdown — the same page handles joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, btu, electronvolts.
Frequently Asked Questions
How do you convert kilocalories to joules?
Enter your value in kilocalories and the converter instantly shows the result in joules using the exact conversion factor.
Is the kilocalories to joules converter free?
Yes — it's completely free, instant and requires no sign-up.
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