Joule to Kilocalorie Converter

Convert Joules (J) to Kilocalories (kcal)

1 Kilocalorie = 4,184 Joules

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Understanding Energy Conversion: Joules to Kilocalories

What is a Joule?

A joule (J) is the SI unit of energy, defined as the energy transferred when applying a force of one newton through a distance of one meter. It's commonly used in physics and engineering to measure mechanical, electrical, and thermal energy.

What is a Kilocalorie?

A kilocalorie (kcal) is the amount of heat energy needed to raise the temperature of one kilogram of water by one degree Celsius. It's widely used in nutrition and food science, where it's often simply called a "calorie" (with a capital C).

Common Uses

  • Food and Nutrition: Measuring energy content in foods
  • Exercise Science: Calculating energy expenditure during physical activities
  • Thermodynamics: Measuring heat transfer in systems
  • Scientific Research: Converting between different energy units

Conversion Formula

Kilocalories = Joules ÷ 4,184

For example: 10,000 joules = 10,000 ÷ 4,184 = 2.39 kilocalories