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 like 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, dem also call am 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 | Watt/Square Meter/K | Btu (IT)/Second/Sq. Foot/°F |
|---|---|---|---|
| 1 | 20441.7 | 1 | 4.892E-05 |
| 2 | 40883.5 | 2 | 9.784E-05 |
| 3 | 61325.2 | 3 | 0.0001468 |
| 5 | 102209 | 5 | 0.0002446 |
| 10 | 204417 | 10 | 0.0004892 |
| 20 | 408835 | 20 | 0.0009784 |
| 25 | 511044 | 25 | 0.00122299 |
| 50 | 1.02209E+06 | 50 | 0.00244597 |
| 100 | 2.04417E+06 | 100 | 0.00489195 |
| 250 | 5.11044E+06 | 250 | 0.0122299 |
| 500 | 1.02209E+07 | 500 | 0.0244597 |
| 1000 | 2.04417E+07 | 1000 | 0.0489195 |
How to convert Btu (IT)/Second/Sq. Foot/°F to Watt/Square Meter/K
1 Btu/(s·ft²·°F) = 20441.7 W/(m²·K). To convert any value, multiply it by 20441.7. For example, 25 Btu/(s·ft²·°F) = 511044 W/(m²·K).
Frequently asked questions
- How many W/(m²·K) are there in one Btu/(s·ft²·°F)?
- One Btu/(s·ft²·°F) is equal to 20441.7 W/(m²·K).
- How do you convert Btu (IT)/Second/Sq. Foot/°F to Watt/Square Meter/K?
- Multiply the value in Btu (IT)/Second/Sq. Foot/°F by 20441.7 to get the result in Watt/Square Meter/K.
- How much is 25 Btu/(s·ft²·°F) in W/(m²·K)?
- 25 Btu/(s·ft²·°F) is equal to 511044 W/(m²·K).
- How do you convert Watt/Square Meter/K back to Btu (IT)/Second/Sq. Foot/°F?
- Divide by the same factor: multiply the value in Watt/Square Meter/K by 4.892E-05 to get Btu (IT)/Second/Sq. Foot/°F.