Convert watt to BTU per hour
1 W = 3.412141633 BTU/h
1 W = 3.41 BTU/h
1 W in every power unit
| milliwatt | 1,000 mW |
| watt | 1 W |
| kilowatt | 0.001 kW |
| megawatt | 0.000001 MW |
| horsepower (mechanical) | 0.00134 hp |
| BTU per hour | 3.41 BTU/h |
| ton of refrigeration | 0.000284 ton |
How the conversion works
Multiply by 3.412141633 to go from watt to BTU per hour, or divide by it to go back. Every conversion on this site routes through the SI value (W) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? BTU per hour to watt — 1 BTU/h = 0.2930710702 W.
watt to BTU per hour — common values
| 1 W | 3.4121416 BTU/h |
| 2 W | 6.8242833 BTU/h |
| 3 W | 10.236425 BTU/h |
| 5 W | 17.060708 BTU/h |
| 10 W | 34.121416 BTU/h |
| 15 W | 51.182124 BTU/h |
| 20 W | 68.242833 BTU/h |
| 25 W | 85.303541 BTU/h |
| 50 W | 170.60708 BTU/h |
| 75 W | 255.91062 BTU/h |
| 100 W | 341.21416 BTU/h |
| 250 W | 853.03541 BTU/h |
| 500 W | 1,706.0708 BTU/h |
| 1000 W | 3,412.1416 BTU/h |