How To Convert Energy Units Calculator
Energy, work and heat are the same physical quantity measured in many different units. A converter routes every value through the joule, the SI unit, so any pair converts consistently.
Converted value
0.2390057361
- Value in joules
- 1
Values update as you type. This calculator covers the single scenario its formula assumes — see Common Mistakes for what it leaves out.
The formula this calculator uses
Result = value x from-factor / to-factor
- value
- Amount you start with
- from
- Size of the source unit in joules
- to
- Size of the target unit in joules
How to check the result by hand
- 1
Enter the amount
Type the energy value you want to convert.
- 2
Pick the source unit
Choose the unit the value is currently in, such as kilojoules.
- 3
Pick the target unit
Choose the unit you want, such as kilocalories.
- 4
Multiply by the source factor
The value is expressed in joules using the source unit's size.
- 5
Divide by the target factor
Converting from the base joule into the target unit gives the answer.
For worked examples, common mistakes and the limits of this formula, read the full How To Convert Energy Units page.