Convert btu (it)/second/sq. foot/°f to watt/square meter/k
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.
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)/Second/Sq. Foot/°F to Watt/Square Meter/K conversion table
| Btu (IT)/Second/Sq. Foot/°F | Watt/Square Meter/K |
|---|---|
| 1 | 20441.7 |
| 2 | 40883.5 |
| 5 | 102209 |
| 10 | 204417 |
| 25 | 511044 |
| 50 | 1.02209E+06 |
| 100 | 2.04417E+06 |
| 500 | 1.02209E+07 |
| 1000 | 2.04417E+07 |