BTU per hour to watts converter
Convert btu per hour to watts with an editable calculator, worked example, formula and reference table. Check the unit definitions before you convert.
Updated · How we checkUse a decimal point, such as 2.5. Enter a value in Btu IT/h; the result is in W.
Formula
Worked example
Convert 12000 Btu IT/h to W:
12000 Btu IT/h ≈ 3,516.852842 W
Multiply your Btu IT/h value by the factor above. The calculator uses the full conversion factor before rounding the displayed answer.
BTU per hour to watts table
Reference values rounded to 10 significant digits. Use the converter above for other amounts.
| BTU per hour (Btu IT/h) | Watts (W) |
|---|---|
| 0.1 | ≈ 0.02930710702 |
| 0.5 | ≈ 0.1465355351 |
| 1 | ≈ 0.2930710702 |
| 2 | ≈ 0.5861421403 |
| 5 | ≈ 1.465355351 |
| 10 | ≈ 2.930710702 |
| 25 | ≈ 7.326776754 |
| 50 | ≈ 14.65355351 |
| 100 | ≈ 29.30710702 |
| 1000 | ≈ 293.0710702 |
Understanding btu per hour
This tool uses International Table British thermal units per hour. The IT Btu is 1,055.05585262 joules. A thermal output rating is not automatically the appliance's electrical input.
Understanding watts
A watt is one joule per second: a rate of energy transfer. Watts measure power; watt-hours measure energy accumulated over time.
Precision and rounding
The calculator keeps decimal precision during the conversion. Displayed values use up to 10 significant digits; an approximation sign marks the reference results. Keep extra digits until your final measurement or purchase decision.
References
Definitions and method references. Example rates and prices on this page are editable assumptions.