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Energy Converter

Convert Joule to Calorie (Gram).

Input the value of joules below to convert instantly to calories (g) with standard conversions, definitions, and equations.

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cal
Value in Calories (g) = Value in Joules × 0.239006 Multiply the value in joules by the conversion factor 0.239006.

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How to Convert Joules to Calories (g)

To convert joule to calorie (gram), we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

joule-to-calorie-formula.py
# Mathematical Formula
Value in Calories (g) = Value in Joules × 0.239006
# Worked Example (5 J)
5 J × 0.239006 = 1.1950 cal
What is a Joule?

Joule (J)

The base SI unit of energy, equal to work done by a force of one newton moving one meter.

What is a Calorie (Gram)?

Calorie (Gram) (cal)

Energy required to raise the temperature of 1g of water by 1°C.

Joule to Calorie (Gram) Conversion Table

Joule (J) Calorie (Gram) (cal)
1 J 0.23901 cal
2 J 0.47801 cal
3 J 0.71702 cal
5 J 1.19503 cal
10 J 2.39006 cal
15 J 3.58509 cal
20 J 4.78011 cal
25 J 5.97514 cal
50 J 11.95029 cal
100 J 23.90057 cal
250 J 59.75143 cal
500 J 119.50287 cal
1000 J 239.00574 cal

Calorie (Gram) to Joule Conversion Table

Calorie (Gram) (cal) Joule (J)
1 cal 4.184 J
2 cal 8.368 J
3 cal 12.552 J
5 cal 20.92 J
10 cal 41.84 J
15 cal 62.76 J
20 cal 83.68 J
25 cal 104.6 J
50 cal 209.2 J
100 cal 418.4 J
250 cal 1046 J
500 cal 2092 J
1000 cal 4184 J
Questions

Frequently Asked Questions

How do I convert joules to calories (g)?

Multiply the value in joules by the conversion factor 0.239006. For example, to convert 5 joules to calories (g): 5 × 0.239006 = 1.1950 cal.

What is the conversion factor from joule to calorie (gram)?

The conversion factor is 0.239006. One joule is equal to 0.239006 calories (g).

What is the reverse conversion from calorie (gram) to joule?

To convert calories (g) back to joules, multiply by 4.184 (or divide the value by 0.239006). One calorie (gram) is equal to 4.184 joules.

How many Joules are in 1 Kilowatt-hour (kWh)?

There are exactly 3,600,000 Joules (or 3.6 Megajoules) in 1 kWh.

What is the difference between a calorie and a Calorie?

A lowercase calorie (cal) is a small metric unit (4.184 J). A capitalized Calorie (Cal) is a food calorie, which is actually a kilocalorie (1,000 small calories or 4,184 J).

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