Convert btu (it)/hour/square foot to watt/square meter
Btu (IT)/Hour/Square Foot
The British thermal unit (IT) per hour per square foot (Btu/(h·ft²)) equals approximately 3.155 W/m² and is the most common imperial unit of heat flux in North American HVAC and building engineering. It is used for heat loss calculations, U-values, and thermal performance ratings of building envelopes.
Watt/Square Meter
The watt per square metre (W/m²) is the SI unit of heat flux density and irradiance. It represents the power transmitted per unit area. The solar constant (total solar irradiance) at Earth's orbit is approximately 1361 W/m². Used in heat transfer engineering, solar energy, and thermal radiation analysis.
Btu (IT)/Hour/Square Foot to Watt/Square Meter conversion table
| Btu (IT)/Hour/Square Foot | Watt/Square Meter |
|---|---|
| 1 | 3.15459 |
| 2 | 6.30918 |
| 5 | 15.773 |
| 10 | 31.5459 |
| 25 | 78.8648 |
| 50 | 157.73 |
| 100 | 315.459 |
| 500 | 1577.3 |
| 1000 | 3154.59 |