Convert btu (th)/hour/sq. foot/°f to watt/square metre/k
Btu (th)/Hour/Sq. Foot/°F
The thermochemical British thermal unit per hour per square foot per degree Fahrenheit (Btu(th)/(h·ft²·°F)) uses the thermochemical BTU (1054.35 J). Slightly different from the IT version, it is applied in thermochemical research and precise calorimetric heat transfer calculations.
Watt/Square Metre/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 (th)/Hour/Sq. Foot/°F to Watt/Square Metre/K conversion table
| Btu (th)/Hour/Sq. Foot/°F | Watt/Square Metre/K | Watt/Square Metre/K | Btu (th)/Hour/Sq. Foot/°F |
|---|---|---|---|
| 1 | 5.67447 | 1 | 0.176228 |
| 2 | 11.3489 | 2 | 0.352456 |
| 3 | 17.0234 | 3 | 0.528684 |
| 5 | 28.3723 | 5 | 0.88114 |
| 10 | 56.7447 | 10 | 1.76228 |
| 20 | 113.489 | 20 | 3.52456 |
| 25 | 141.862 | 25 | 4.4057 |
| 50 | 283.723 | 50 | 8.8114 |
| 100 | 567.447 | 100 | 17.6228 |
| 250 | 1418.62 | 250 | 44.057 |
| 500 | 2837.23 | 500 | 88.114 |
| 1000 | 5674.47 | 1000 | 176.228 |
How to convert Btu (th)/Hour/Sq. Foot/°F to Watt/Square Metre/K
1 Btu(th)/(h·ft²·°F) = 5.67447 W/(m²·K). To convert any value, multiply it by 5.67447. For example, 25 Btu(th)/(h·ft²·°F) = 141.862 W/(m²·K).
Frequently asked questions
- How many W/(m²·K) are there in one Btu(th)/(h·ft²·°F)?
- One Btu(th)/(h·ft²·°F) is equal to 5.67447 W/(m²·K).
- How do you convert Btu (th)/Hour/Sq. Foot/°F to Watt/Square Metre/K?
- Multiply the value in Btu (th)/Hour/Sq. Foot/°F by 5.67447 to get the result in Watt/Square Metre/K.
- How much is 25 Btu(th)/(h·ft²·°F) in W/(m²·K)?
- 25 Btu(th)/(h·ft²·°F) is equal to 141.862 W/(m²·K).
- How do you convert Watt/Square Metre/K back to Btu (th)/Hour/Sq. Foot/°F?
- Divide by the same factor: multiply the value in Watt/Square Metre/K by 0.176228 to get Btu (th)/Hour/Sq. Foot/°F.