Power and Energy
J/stoW
Convert joules per second (J/s) to watts (W).
Factor1 J/s = 1 W
Converter
J/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W
Rendered to 6 significant figures.
Formula
Formula
W = J/s × 1
Multiply any value in joules per second by 1 to obtain the value in watts.
Worked example
Convert 1000 J/s to W.
- 01Start with 1000 J/s.
- 02Multiply by the conversion factor: 1000 × 1 = 1000 W.
Result1000 J/s = 1000 W
Conversion table
| J/s | W |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 50 | 50 |
| 100 | 100 |
| 200 | 200 |
| 500 | 500 |
| 1000 | 1000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from J/s to W?
1 J/s equals 1 W. To convert, multiply the value in joules per second by 1.
How do I convert 1 J/s to W?
1 J/s = 1 W. For any value, multiply by 1.
How do I convert W back to J/s?
Divide by the same factor — or equivalently, multiply by 1. So 1 W = 1 J/s.
When would I need to convert joule per second to watt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).