How many Kilojoule are in one Kilocalorie?

One Kilocalorie equals 4.184 kJ. Enter any amount above to get an exact figure for your own value.

Is this converter accurate?

Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.

Do you upload the numbers I enter?

No. The Kilocalorie to Kilojoule conversion runs entirely in your browser tab, and nothing you type is sent to a server.

Does it work on my phone?

Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

All converters

Kilocalorie to Kilojoule

Convert Kilocalorie to Kilojoule and get the exact value instantly.

Kilocalorie (kcal)Kilojoule (kJ)4.184

1 kcal = 4.184 kJ

Related conversions

Kilocalorie → Joule Kilocalorie → Megajoule Kilocalorie → Gigajoule Kilocalorie → Calorie Kilocalorie → Watt hour Kilocalorie → Kilowatt hour Kilocalorie → Electronvolt Kilocalorie → British thermal unit

About this conversion

To convert Kilocalorie to Kilojoule, multiply the number of Kilocalorie by 4.184.

Energy shows up as joules, calories, kilowatt-hours or BTU depending on the field (nutrition, an electricity bill, heating or physics), so a conversion makes the numbers comparable.

Conversion table

Kilocalorie (kcal)	Kilojoule (kJ)
1 kcal	4.184 kJ
2 kcal	8.368 kJ
5 kcal	20.92 kJ
10 kcal	41.84 kJ
100 kcal	418.4 kJ

How to use this converter

Enter your Kilocalorie value
Type any number into the Kilocalorie field. It starts at 1 so you can read the rate straight away.
Read the Kilojoule result
The amount in Kilojoule updates as you type, so there is no button to press and nothing to wait for.
Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Kilojoule are in one Kilocalorie?: One Kilocalorie equals 4.184 kJ. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?: Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?: No. The Kilocalorie to Kilojoule conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?: Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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