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Power and Energy

WtoBTU/hr

Convert watts (W) to British thermal units per hour (BTU/hr).

Factor1 W = 3.412142 BTU/hr

Converter

W

Accepts numbers or expressions, e.g. 150 + 14.7

Result
3412.14BTU/hr

Rendered to 6 significant figures.

Formula

Formula
BTU/hr = W × 3.412142

Multiply any value in watts by 3.412142 to obtain the value in British thermal units per hour.

Worked example

Convert 1000 W to BTU/hr.

  1. 01Start with 1000 W.
  2. 02Multiply by the conversion factor: 1000 × 3.412142 = 3412.14 BTU/hr.
Result1000 W = 3412.14 BTU/hr

Conversion table

WBTU/hr
13.4121
26.8243
517.061
1034.121
2068.243
50170.61
100341.21
200682.43
5001706.1
10003412.1

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from W to BTU/hr?
1 W equals 3.412142 BTU/hr. To convert, multiply the value in watts by 3.412142.
How do I convert 1 W to BTU/hr?
1 W = 3.41214 BTU/hr. For any value, multiply by 3.412142.
How do I convert BTU/hr back to W?
Divide by the same factor — or equivalently, multiply by 0.2930711. So 1 BTU/hr = 0.293071 W.
When would I need to convert watt 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).

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