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Kilojoules to Calories Converter

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

Value

From

1 kJ = 239.006 calories

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Quick Answer

1 kilojoule equals 239.006 calories. To convert kilojoules to calories, multiply the value by this factor.

Key Facts

Reverse: 1 calorie = 0.004184 kilojoules.

Kilojoules to Calories Formula

Formula: value × 239.006

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

Kilojoules to Calories Conversion Table

Kilojoules (kJ)	Calories (cal)
1 kJ	239.006 cal
2 kJ	478.011 cal
5 kJ	1,195.03 cal
10 kJ	2,390.06 cal
25 kJ	5,975.14 cal
50 kJ	11,950.3 cal
100 kJ	23,900.6 cal
250 kJ	59,751.4 cal
500 kJ	119,503 cal
1,000 kJ	239,006 cal

Frequently Asked Questions

How do I convert kilojoules to calories?

Enter the value above and the result appears instantly — the calculation runs entirely in your browser. Formula: value × 239.006.

What is the exact kilojoules to calories conversion factor?

1 kilojoule = 239.006 calories (shown to 6 significant figures — the converter itself computes at full precision). The reverse factor is 1 calorie = 0.004184 kilojoules.

What are some common kilojoules to calories conversions?

1 kJ = 239.006 cal; 10 kJ = 2,390.06 cal; 100 kJ = 23,900.6 cal. 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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