Converters

Joules to Calories Converter

Convert joules to calories instantly. 1 joule = 0.239006 calories.

From

0.239006

1 J = 0.239006 cal

Common conversions

From 1 joules

Kilojoules (kJ)0.001
Calories (cal)0.239006
Kilocalories (kcal)0.000239006
Watt-hours (Wh)0.000277778
Kilowatt-hours (kWh)2.7778e-7
BTU (BTU)0.000947813
Electronvolts (eV)6.2415e+18

Popular energy conversions

Joules → Calories Kilojoules → Kilocalories Kilowatt-hours → Joules BTU → Joules Calories → Kilocalories Joules → BTU

Method

How it works

Calories = Joules × 0.2390057361

Multiply the number of joules by 0.2390057361 to get calories. To go back, multiply by 4.184. Examples: 1 J = 0.239006 cal · 5 J = 1.19503 cal · 10 J = 2.39006 cal · 100 J = 23.9006 cal.

FAQ

Frequently asked

How many calories are in a joule?

1 joule = 0.239006 calories.

What is the formula to convert joules to calories?

Calories = Joules × 0.2390057361

Is this conversion exact?

The conversion factor between joules and calories is defined by international standards and is exact to at least 10 significant figures here.

Can I convert in the opposite direction?

Yes — use our Calories to Joules converter, or multiply your value by 4.184.

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