Power and Energy
J/stoBTU/hr
Convert joules per second (J/s) to British thermal units per hour (BTU/hr).
Factor1 J/s = 3.412142 BTU/hr
Converter
J/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
BTU/hr
Rendered to 6 significant figures.
Formula
Formula
BTU/hr = J/s × 3.412142
Multiply any value in joules per second by 3.412142 to obtain the value in British thermal units per hour.
Worked example
Convert 1000 J/s to BTU/hr.
- 01Start with 1000 J/s.
- 02Multiply by the conversion factor: 1000 × 3.412142 = 3412.14 BTU/hr.
Result1000 J/s = 3412.14 BTU/hr
Conversion table
| J/s | BTU/hr |
|---|---|
| 1 | 3.4121 |
| 2 | 6.8243 |
| 5 | 17.061 |
| 10 | 34.121 |
| 20 | 68.243 |
| 50 | 170.61 |
| 100 | 341.21 |
| 200 | 682.43 |
| 500 | 1706.1 |
| 1000 | 3412.1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from J/s to BTU/hr?
1 J/s equals 3.412142 BTU/hr. To convert, multiply the value in joules per second by 3.412142.
How do I convert 1 J/s to BTU/hr?
1 J/s = 3.41214 BTU/hr. For any value, multiply by 3.412142.
How do I convert BTU/hr back to J/s?
Divide by the same factor — or equivalently, multiply by 0.2930711. So 1 BTU/hr = 0.293071 J/s.
When would I need to convert joule per second to British thermal unit per hour?
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).