⚡ Energy Unit Converter

Convert between different energy units including Joules, Calories, Kilowatt-hours (kWh), Watt-hours (Wh), and Kilocalories. Essential for physics, engineering, and nutrition calculations.

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Free Energy Converter - Convert Joules, Calories, kWh

Convert between different energy units instantly. Perfect for science students, engineers, nutritionists, and anyone working with energy calculations.

Common Energy Conversions

  • 1 Calorie (cal) = 4.184 Joules
  • 1 Kilocalorie (kcal) = 4,184 Joules (food calories)
  • 1 Kilowatt-hour (kWh) = 3.6 Million Joules (electricity billing)
  • 1 BTU = 1,055 Joules (heating/cooling)

❓ Frequently Asked Questions

Q: What's the difference between calories and kilocalories?
A: 1 kilocalorie (kcal) = 1,000 calories. Food calories are actually kilocalories.

Q: How many joules in a kWh?
A: 1 kWh = 3,600,000 Joules.