BTU Calculator
Estimate the heat output a room needs in BTU and watts.
Estimated heat output
5,732BTU/hr
- In watts
- 1,680 W
- Room volume
- 33.6 m³
Rough estimate using 50 W per cubic metre. Poorly insulated rooms need more.
v1.0 · Reviewed September 2026
Estimate the heat output a room needs in BTU and watts.
Estimated heat output
5,732BTU/hr
Rough estimate using 50 W per cubic metre. Poorly insulated rooms need more.
v1.0 · Reviewed September 2026