Energy Converter

Convert between chemical, electrical and physical energy units.

Energy
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Related Conversions
5 kcal to kJ 25 kcal to kJ 100 kcal to kJ 250 kcal to kJ 2,500 kcal to kJ 25,000 kcal to kJ 88,000 kcal to kJ 100,000 kcal to kJ 220,000 kcal to kJ 264,000 kcal to kJ 440,000 kcal to kJ 1,100,000 kcal to kJ
Reverse Conversions
5 kJ to kcal 50 kJ to kcal 100 kJ to kcal 250 kJ to kcal 2,500 kJ to kcal 5,000 kJ to kcal 50,000 kJ to kcal 88,000 kJ to kcal 121,000 kJ to kcal 132,000 kJ to kcal 176,000 kJ to kcal 1,100,000 kJ to kcal
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

AA battery 10 kJ
Microwave 10 minutes 0.17 kWh
Phone battery 40 kJ
Match stick 1 kJ
Cup of coffee 5 kJ
Laptop full charge 200 kJ

Formula

kJ = kcal × 4.184

Example

Example: convert 110000 kilocalories to kilojoules.

110000 kcal = 460240 kJ

Conversion table

kilocalories (kcal) kilojoules (kJ)
1 kcal 4.184 kJ
2 kcal 8.368 kJ
5 kcal 20.92 kJ
10 kcal 41.84 kJ
20 kcal 83.68 kJ
50 kcal 209.2 kJ
100 kcal 418.4 kJ

Explanation

These are both units.

How to convert kilocalories to kilojoules

  1. Start with the value in kilocalories (kcal).
  2. Multiply it by 4.184.
  3. The result is the measurement in kilojoules (kJ).

Example: 110000 kcal → 460240 kJ

Frequently Asked Questions

How much is 110000 kilocalories in kilojoules?

110000 kilocalories equals 460240 kilojoules.

How many kilojoules is 1 kilocalorie?

1 kilocalorie equals 4.184 kilojoules.

How many kilocalories is 1 kilojoule?

1 kilojoule equals 0.239005736138 kilocalories.

What is the difference between kilocalories and kilojoules?

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 kilocalories and kilojoules 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 kilocalorie equal 4.184 kilojoules?

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