Energy Converter

Convert between chemical, electrical and physical energy units.

Energy
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Related Conversions
50 kJ to kcal 100 kJ to kcal 190 kJ to kcal 253 kJ to kcal 422 kJ to kcal 500 kJ to kcal 506 kJ to kcal 844 kJ to kcal 2,110 kJ to kcal 4,220 kJ to kcal 5,000 kJ to kcal 10,000 kJ to kcal
Reverse Conversions
50 kcal to kJ 190 kcal to kJ 232 kcal to kJ 250 kcal to kJ 253 kcal to kJ 422 kcal to kJ 844 kcal to kJ 4,220 kcal to kJ 5,000 kcal to kJ 10,000 kcal to kJ 50,000 kcal to kJ 100,000 kcal to kJ
More Energy Conversions
1 MJ to BTU 100 J to cal 1 GJ to kWh 1 GJ to MJ 2 MJ to BTU 250 cal to J 1 MJ to kWh 2 GJ to MJ 10 BTU to J 500 cal to J

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Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

Boil 1 liter water 334 kJ
Cup of coffee 5 kJ
Food calorie 4184 J
Gasoline liter 34 MJ
Phone battery 40 kJ
Microwave 10 minutes 0.17 kWh

Formula

kcal = kJ × 0.2390057361

Example

Example: convert 211 kilojoules to kilocalories.

211 kJ = 50.43021033 kcal

Conversion table

kilojoules (kJ) kilocalories (kcal)
1 kJ 0.23900574 kcal
2 kJ 0.47801147 kcal
5 kJ 1.19502868 kcal
10 kJ 2.39005736 kcal
20 kJ 4.78011472 kcal
50 kJ 11.95028681 kcal
100 kJ 23.90057361 kcal

Explanation

These are both units.

How to convert kilojoules to kilocalories

  1. Start with the value in kilojoules (kJ).
  2. Multiply it by 0.2390057361.
  3. The result is the measurement in kilocalories (kcal).

Example: 211 kJ → 50.43021033 kcal

Frequently Asked Questions

How much is 211 kilojoules in kilocalories?

211 kilojoules is about 50.4302 kilocalories.

How many kilocalories is 1 kilojoule?

1 kilojoule equals 0.239005736138 kilocalories.

How many kilojoules is 1 kilocalorie?

1 kilocalorie equals 4.184 kilojoules.

What is the difference between kilojoules and kilocalories?

Both measure energy in SI. The main difference is usually scale: some units are convenient for smaller values, while others are used to express larger values more practically.

Where are kilojoules and kilocalories used?

They are used in physics and engineering to measure work, energy, and heat; the most practical unit depends on the magnitude.

Why does 1 kilojoule equal 0.239005736138 kilocalories?

Because the units are defined with a fixed relationship. To convert kilojoules to kilocalories, multiply by that factor.