Joules to Calories Converter

1 J = 0.239005736138 cal. Type any value below for the exact calories figure.

J
0.239005736138cal

1 J = 0.239005736138 cal

Conversion summary

1 J = 0.239005736138 cal

Formula
Calorie = Joule ÷ 4.184
Category
Energy and Power
Units
J → cal

1 J in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

How do you convert joules to calories?

To convert joules to calories, divide the number of joules by 4.184. 1 J = 0.239006 cal.

Conversion formula

Calorie = Joule ÷ 4.184

Joules to calories conversion table

Joules (J)Calories (cal)
1 J0.239006 cal
10 J2.39006 cal
50 J11.9503 cal
100 J23.9006 cal
500 J119.503 cal
1,000 J239.006 cal
5,000 J1,195.03 cal

What is Joule?

The joule is the SI derived unit of energy. It is used for work, heat and energy quantities.

Short history of Joule

The joule became the standard SI reference for energy as mechanics and thermodynamics were unified in modern measurement.

Open the Joule unit guide

What is Calorie?

The calorie is a traditional energy unit originally defined based on heating water.

Short history of Calorie

Historically common in chemistry and nutrition science.

Open the Calorie unit guide

Frequently asked questions

What is 1 Joule in Calorie?

1 J = 0.239005736138 cal.

How do you convert Joule to Calorie?

To convert joules to calories, divide the number of joules by 4.184. 1 J = 0.239006 cal.

Frequently asked questions

How many calories are in 1 joule?

1 J = 0.239006 cal.

How do you convert joules to calories?

To convert joules to calories, divide the number of joules by 4.184. 1 J = 0.239006 cal.

How many joules are in 1 calorie?

1 cal = 4.184 J.

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: NIST Guide to the SI — Appendix B.8: Factors for Units Listed Alphabetically
  3. NIST: Guide to the SI — Conversion Factors

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