Convert Joules to Watts for free with our J to W online calculator
How To Convert Joules to Watts
To convert joules to watts, you need to use the following J to W formula:
Watts (W) = Joules (J) / Time (seconds)
For example, if a light bulb uses 10 Joules of energy (electrical) and stays lit for 2 seconds, you can find the power (wattage) of the bulb:
Power = 10 Joules / 2 seconds = 5 Watts
Joules to Watts Conversion Examples
Example 1: Convert 500 joules to watts
- Input: 500 joules
- Result: 500 watts
Example 2: Convert 10,000 joules to watts
- Input: 10,000 joules
- Result: 10,000 watts
Related: Joules to Kilojoules