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Energy Converter

Convert Calorie (Gram) to Kilojoule.

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

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kJ
Value in Kilojoules = Value in Calories (g) × 0.004184 Multiply the value in calories (g) by the conversion factor 0.004184.

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How to Convert Calories (g) to Kilojoules

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

calorie-to-kilojoule-formula.py
# Mathematical Formula
Value in Kilojoules = Value in Calories (g) × 0.004184
# Worked Example (5 cal)
5 cal × 0.004184 = 0.0209 kJ
What is a Calorie (Gram)?

Calorie (Gram) (cal)

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

What is a Kilojoule?

Kilojoule (kJ)

One thousand Joules.

Calorie (Gram) to Kilojoule Conversion Table

Calorie (Gram) (cal) Kilojoule (kJ)
1 cal 0.00418 kJ
2 cal 0.00837 kJ
3 cal 0.01255 kJ
5 cal 0.02092 kJ
10 cal 0.04184 kJ
15 cal 0.06276 kJ
20 cal 0.08368 kJ
25 cal 0.1046 kJ
50 cal 0.2092 kJ
100 cal 0.4184 kJ
250 cal 1.046 kJ
500 cal 2.092 kJ
1000 cal 4.184 kJ

Kilojoule to Calorie (Gram) Conversion Table

Kilojoule (kJ) Calorie (Gram) (cal)
1 kJ 239.00574 cal
2 kJ 478.01147 cal
3 kJ 717.01721 cal
5 kJ 1195.02868 cal
10 kJ 2390.05736 cal
15 kJ 3585.08604 cal
20 kJ 4780.11472 cal
25 kJ 5975.1434 cal
50 kJ 11950.28681 cal
100 kJ 23900.57361 cal
250 kJ 59751.43403 cal
500 kJ 119502.86807 cal
1000 kJ 239005.73614 cal
Questions

Frequently Asked Questions

How do I convert calories (g) to kilojoules?

Multiply the value in calories (g) by the conversion factor 0.004184. For example, to convert 5 calories (g) to kilojoules: 5 × 0.004184 = 0.0209 kJ.

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

The conversion factor is 0.004184. One calorie (gram) is equal to 0.004184 kilojoules.

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

To convert kilojoules back to calories (g), multiply by 239.005736 (or divide the value by 0.004184). One kilojoule is equal to 239.005736 calories (g).

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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