Convert btu (it)/hour/sq. foot/°f to btu (it)/second/sq. foot/°f
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.
Btu (IT)/Second/Sq. Foot/°F
The British thermal unit per second per square foot per degree Fahrenheit (Btu/(s·ft²·°F)) equals approximately 20,442 W/(m²·K). This high-rate imperial unit is used for intense heat transfer situations such as condensation, boiling, and rocket nozzle cooling in North American engineering.
Btu (IT)/Hour/Sq. Foot/°F to Btu (IT)/Second/Sq. Foot/°F conversion table
| Btu (IT)/Hour/Sq. Foot/°F | Btu (IT)/Second/Sq. Foot/°F |
|---|---|
| 1 | 0.0002778 |
| 2 | 0.0005556 |
| 5 | 0.00138889 |
| 10 | 0.00277778 |
| 25 | 0.00694444 |
| 50 | 0.0138889 |
| 100 | 0.0277778 |
| 500 | 0.138889 |
| 1000 | 0.277778 |