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Kilojoules to Kilocalories Converter

Free instant kJ → kcal converter. No signup, no uploads — everything is calculated privately in your browser.

Value

From

1 kJ = 0.239006 kilocalories

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Quick Answer

1 kilojoule equals 0.239006 kilocalories. To convert kilojoules to kilocalories, multiply the value by this factor.

Key Facts

Reverse: 1 kilocalorie = 4.184 kilojoules.

Kilojoules to Kilocalories Formula

Formula: value ÷ 4.184

Prefer to skip the math? Type any value in the converter above and it converts instantly.

Kilojoules to Kilocalories Conversion Table

Kilojoules (kJ)	Kilocalories (kcal)
1 kJ	0.239006 kcal
2 kJ	0.478011 kcal
5 kJ	1.19503 kcal
10 kJ	2.39006 kcal
25 kJ	5.97514 kcal
50 kJ	11.9503 kcal
100 kJ	23.9006 kcal
250 kJ	59.7514 kcal
500 kJ	119.503 kcal
1,000 kJ	239.006 kcal

Frequently Asked Questions

How do I convert kilojoules to kilocalories?

Enter the value above and the result appears instantly — the calculation runs entirely in your browser. Formula: value ÷ 4.184.

What is the exact kilojoules to kilocalories conversion factor?

1 kilojoule = 0.239006 kilocalories (shown to 6 significant figures — the converter itself computes at full precision). The reverse factor is 1 kilocalorie = 4.184 kilojoules.

What are some common kilojoules to kilocalories conversions?

1 kJ = 0.239006 kcal; 10 kJ = 2.39006 kcal; 100 kJ = 23.9006 kcal. Use the full conversion table below for more reference values.

Is a calorie the same as a food Calorie?

No — and the capital letter matters. A food Calorie (with a capital C) is a kilocalorie: 1,000 small calories. This converter treats them correctly: 1 kcal = 4.184 kJ = 1,000 cal. Energy labels on food almost always mean kilocalories, even where the label just says "calories".

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