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Joules to Calories converter

Convert J to cal instantly. Type any value and get the result in calories. 1 J = 0.239006 cal.

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Energy›J → cal
From
To
result below ↓
1 J=
0.239006cal
formula1 J = 0.239006 cal

Common joules → calories

=0.239006 cal
=0.478011 cal
=1.19503 cal
=2.39006 cal
=4.78011 cal
=11.9503 cal
=23.9006 cal
=119.503 cal
=239.006 cal

Need a different value? .

Convert the other way
Calories to Joules

How to convert joules to calories

To convert joules to calories, multiply the value by 0.239006.

Formula
cal = J × 0.239006

For example:

  • →5 J = 1.19503 cal
  • →100 J = 23.9006 cal

Quick reference

  • ▸1 J = 0.239006 cal
  • ▸1 cal = 4.184 J

When you need to convert J to cal

  • ·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 calories are in 1 joule?
One joule equals 0.239006 calories.
How do I convert J to cal in my head?
Multiply the value in joules by 0.239006 to get calories.
What is the formula for joules to calories?
cal = J × 0.239006.
What is the reverse — how many joules in 1 calorie?
One calorie equals 4.184 joules.

Related conversions

Calories to Joules
1 cal = 4.184 J
Joules to Kilojoules
1 J = 0.001 kJ
Joules to Kilocalories
1 J = 0.000239006 kcal
Joules to Watt-hours
1 J = 0.000277778 Wh
Kilojoules to Calories
1 kJ = 239.006 cal
Kilocalories to Calories
1 kcal = 1,000 cal
Watt-hours to Calories
1 Wh = 860.421 cal
Kilowatt-hours to Calories
1 kWh = 860,421 cal
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