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Joules to Kilocalories converter

Convert J to kcal instantly. Type any value and get the result in kilocalories. 1 J = 0.000239006 kcal.

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Energy›J → kcal
From
To
result below ↓
1 J=
0.000239006kcal
formula1 J = 0.000239006 kcal

Common joules → kilocalories

=0.000239006 kcal
=0.000478011 kcal
=0.00119503 kcal
=0.00239006 kcal
=0.00478011 kcal
=0.0119503 kcal
=0.0239006 kcal
=0.119503 kcal
=0.239006 kcal

Need a different value? .

Convert the other way
Kilocalories to Joules

How to convert joules to kilocalories

To convert joules to kilocalories, multiply the value by 0.000239006.

Formula
kcal = J × 0.000239006

For example:

  • →5 J = 0.00119503 kcal
  • →100 J = 0.0239006 kcal

Quick reference

  • ▸1 J = 0.000239006 kcal
  • ▸1 kcal = 4,184 J

When you need to convert J to kcal

  • ·Nutrition — converting calories to kilojoules on food labels.
  • ·Electricity bills — kWh consumption.
  • ·Heating — BTU ratings for furnaces.
  • ·Exercise — calorie burn during workouts.
  • ·Science — chemistry and physics problems.

Frequently asked

How many kilocalories are in 1 joule?
One joule equals 0.000239006 kilocalories.
How do I convert J to kcal in my head?
Multiply the value in joules by 0.000239006 to get kilocalories.
What is the formula for joules to kilocalories?
kcal = J × 0.000239006.
What is the reverse — how many joules in 1 kilocalorie?
One kilocalorie equals 4,184 joules.

Related conversions

Kilocalories to Joules
1 kcal = 4,184 J
Joules to Kilojoules
1 J = 0.001 kJ
Joules to Calories
1 J = 0.239006 cal
Joules to Watt-hours
1 J = 0.000277778 Wh
Kilojoules to Kilocalories
1 kJ = 0.239006 kcal
Calories to Kilocalories
1 cal = 0.001 kcal
Watt-hours to Kilocalories
1 Wh = 0.860421 kcal
Kilowatt-hours to Kilocalories
1 kWh = 860.421 kcal
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