UtilHub

Energy Converter

Convert between energy units — joules, calories, watt-hours and BTU. Type a value and see the result instantly.

Popular Energy Conversions

Joules to Calories Converter Convert joules, calories, watt-hours and BTU. Calories to Joules Converter Convert joules, calories, watt-hours and BTU. Kilowatt-hours to Joules Converter Convert joules, calories, watt-hours and BTU. Joules to Kilowatt-hours Converter Convert joules, calories, watt-hours and BTU.

Supported Units

How to Convert

  1. Enter the value you want to convert.
  2. Choose the unit you are converting from.
  3. Choose the unit you want to convert to.
  4. The converted value appears immediately.

Example

Calories = joules × 0.2390057361 — 5 joules × 0.2390057361 = 1.1950286807 calories

Frequently Asked Questions

How do I use the Energy Converter?

Enter a value, choose the unit you are converting from and the unit you want to convert to. The result appears instantly — Convert between energy units — joules, calories, watt-hours and BTU.

Which units does the Energy Converter support?

Supported units: Joule (J), Kilojoule (kJ), Calorie (cal), Kilocalorie (kcal), Watt-hour (Wh), Kilowatt-hour (kWh), British Thermal Unit (BTU).

Are the conversion factors exact?

Yes. The converter uses internationally defined conversion factors, so results are precise to the digits shown.

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