Watts to BTU per hour
1 watt = 3.41 BTU per hour
For any other value: BTU/h = W × 3.412141633
Calculator
5118.2 BTU/h
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You can leave the unit in: 100 W is fine.
Watts to BTU per hour chart
The values people look up most.
| watts | BTU per hour |
|---|---|
| 1500 W | 5118.2 BTU/h |
| 4500 W | 15354.6 BTU/h |
| 1 W | 3.41 BTU/h |
| 1000 W | 3412.1 BTU/h |
| 7500 W | 25591.1 BTU/h |
| 5000 W | 17060.7 BTU/h |
| 10000 W | 34121.4 BTU/h |
| 3000 W | 10236.4 BTU/h |
| 1800 W | 6141.9 BTU/h |
| 4000 W | 13648.6 BTU/h |
| 8000 W | 27297.1 BTU/h |
| 2000 W | 6824.3 BTU/h |
| 6000 W | 20472.8 BTU/h |
| 12000 W | 40945.7 BTU/h |
| 500 W | 1706.1 BTU/h |
| 15000 W | 51182.1 BTU/h |
Formula
BTU/h = W × 3.412141633
BTU here means BTU per hour, which is how air conditioning power is rated. A plain BTU is energy, not power.
Where this number comes from
The BTU has several definitions; this page uses the International Table BTU (BTU IT) as listed in NIST SP 811, which is the one used to rate heating and air conditioning, not the thermochemical BTU.
Source: NIST Guide to the SI, Appendix B: Conversion Factors, NIST (National Institute of Standards and Technology, USA).
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