Convert btu (it)/hour/sq. foot/°f to watt/square meter/k
Btu (IT)/Hour/Sq. Foot/°F
The British thermal unit per hour per square foot per degree Fahrenheit (Btu/(h·ft²·°F)) equals approximately 5.678 W/(m²·K). It is the standard imperial unit for heat transfer coefficient (U-value) in North American HVAC, building codes, and heat exchanger design and is related to the R-value of insulation.
Watt/Square Meter/K
The watt per square metre per kelvin (W/(m²·K)) is the SI unit of heat transfer coefficient, also known as the U-value or film coefficient. It quantifies the rate of heat transfer per unit area per unit temperature difference. Typical values range from 2–25 W/(m²·K) for free convection to over 10,000 W/(m²·K) for boiling.
Btu (IT)/Hour/Sq. Foot/°F to Watt/Square Meter/K conversion table
| Btu (IT)/Hour/Sq. Foot/°F | Watt/Square Meter/K |
|---|---|
| 1 | 5.67826 |
| 2 | 11.3565 |
| 5 | 28.3913 |
| 10 | 56.7826 |
| 25 | 141.957 |
| 50 | 283.913 |
| 100 | 567.826 |
| 500 | 2839.13 |
| 1000 | 5678.26 |