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Unit converter

Energy Converter

Convert between joules, calories, kilocalories, kilowatt-hours, BTU, and electronvolts.

Kilojoules to Calories

1 Kilojoule = 239.0057361 Calories
239.0057361

About these units

Kilojoules

The kilojoule equals 1,000 joules and is the metric unit for food energy in many countries and for mechanical work.

Calories

The calorie is the energy to raise 1 gram of water by 1 °C, about 4.184 joules. It's a small unit used in chemistry and physics.

Conversion formula

To convert Kilojoule to Calorie, multiply the value by 239.0057361.

Quick reference

KilojoulesCalories
1239.0057361
2478.0114723
51,195.028681
102,390.057361
10023,900.57361

Frequently asked questions

How many Calories are in one Kilojoule?
1 Kilojoule = 239.0057361 Calories.
How many Kilojoules are in one Calorie?
1 Calorie = 0.004184 (4.184 × 10⁻³) Kilojoules.

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