BTUs per Hour-Sq. Foot-°F to Watts per Square Meter-Kelvin Converter
Enter the heat transfer coefficient in btus per hour-sq. foot-°f below to convert it to watts per square meter-kelvin.
Convert BTUs per Hour-Sq. Foot-°F to Watts per Square Meter-Kelvin
Enter a value in btus per hour-sq. foot-°f (BTU/(h·ft²·°F)) to convert to watts per square meter-kelvin (W/(m²·K)).
BTU per Hour-Sq. Foot-°F to Watt per Square Meter-Kelvin Conversion Table
Table showing various btu per hour-sq. foot-°f measurements converted to watts per square meter-kelvin. Click any preset value or arrow to load it into the converter.
| BTUs per Hour-Sq. Foot-°F (BTU/(h·ft²·°F)) | Watts per Square Meter-Kelvin (W/(m²·K)) |
|---|---|
| 1 BTU/(h·ft²·°F) | 5.6782633 W/(m²·K) |
| 2 BTU/(h·ft²·°F) | 11.3565267 W/(m²·K) |
| 5 BTU/(h·ft²·°F) | 28.3913167 W/(m²·K) |
| 10 BTU/(h·ft²·°F) | 56.7826334 W/(m²·K) |
| 15 BTU/(h·ft²·°F) | 85.1739501 W/(m²·K) |
| 20 BTU/(h·ft²·°F) | 113.5652668 W/(m²·K) |
| 25 BTU/(h·ft²·°F) | 141.9565835 W/(m²·K) |
| 30 BTU/(h·ft²·°F) | 170.3479002 W/(m²·K) |
| 50 BTU/(h·ft²·°F) | 283.913167 W/(m²·K) |
| 75 BTU/(h·ft²·°F) | 425.8697505 W/(m²·K) |
How to Convert BTUs per Hour-Sq. Foot-°F to Watts per Square Meter-Kelvin
To convert btus per hour-sq. foot-°f to watts per square meter-kelvin, multiply the heat transfer coefficient by the following conversion ratio: 5.6782633 watts per square meter-kelvin/btu per hour-sq. foot-°f.
Since one btu per hour-sq. foot-°f is equal to 5.6782633 watts per square meter-kelvin, you can use this simple formula to convert:
The heat transfer coefficient in watts per square meter-kelvin is equal to the heat transfer coefficient in btus per hour-sq. foot-°f multiplied by 5.6782633.
For example, here's how to convert 10 btus per hour-sq. foot-°f to watts per square meter-kelvin using the formula above.
How Many Watts per Square Meter-Kelvin Are in a BTU per Hour-Sq. Foot-°F?
There are 5.6782633 watts per square meter-kelvin in a btu per hour-sq. foot-°f, which is why we use this value in the formula above.
Our btu per hour-sq. foot-°f to watt per square meter-kelvin calculator automatically converts your heat transfer coefficient measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
BTUs per Hour-Sq. Foot-°F and watts per square meter-kelvin are both units used to measure heat transfer coefficient. Keep reading to learn more about each unit.
What Is a BTU per Hour-Sq. Foot-°F?
A btu per hour-sq. foot-°f is a unit of heat transfer coefficient equal to 5.6782633 watts per square meter-kelvin (W/(m²·K)), the base unit for heat transfer coefficient. US fenestration U-factor and heat exchanger coefficient (≈ 5.6783 W/(m²·K)). [1]
The btu per hour-sq. foot-°f is classified as a US customary unit of heat transfer coefficient. BTUs per Hour-Sq. Foot-°F can be abbreviated as BTU/(h·ft²·°F); for example, 1 btu per hour-sq. foot-°f can be written as 1 BTU/(h·ft²·°F).
When working with btus per hour-sq. foot-°f (BTU/(h·ft²·°F)) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, btus per hour-sq. foot-°f (BTU/(h·ft²·°F)) are widely used across standard heat transfer coefficient applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Watt per Square Meter-Kelvin?
SI unit of heat transfer coefficient and window U-value. It serves as a primary reference unit for measuring heat transfer coefficient across scientific and practical applications. [2]
The watt per square meter-kelvin is classified as an International System of Units (SI) unit of heat transfer coefficient. Watts per Square Meter-Kelvin can be abbreviated as W/(m²·K); for example, 1 watt per square meter-kelvin can be written as 1 W/(m²·K).
As the primary coherent reference unit for heat transfer coefficient in this category, all other heat transfer coefficient units are mathematically anchored to the watt per square meter-kelvin (W/(m²·K)).
In practice, watts per square meter-kelvin (W/(m²·K)) are widely used across standard heat transfer coefficient applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting heat transfer coefficient between btus per hour-sq. foot-°f (BTU/(h·ft²·°F)) and watts per square meter-kelvin (W/(m²·K)), keep full floating-point precision (1 BTU/(h·ft²·°F) = 5.6782633 W/(m²·K); 1 W/(m²·K) = 0.1761102 BTU/(h·ft²·°F)) during intermediate calculations and round only the final watt per square meter-kelvin figure to match your instrument tolerance.
More BTU per Hour-Sq. Foot-°F & Watt per Square Meter-Kelvin Conversions
Need to calculate in the opposite direction? Use our watts per square meter-kelvin to btus per hour-sq. foot-°f converter (W/(m²·K) to BTU/(h·ft²·°F)) to switch your starting unit immediately. You can also explore related tools such as converting watts per square meter-°c to watts per square meter-kelvin, converting kilowatts per square meter-kelvin to watts per square meter-kelvin, or converting watts per square meter-kelvin to watts per square meter-°c.
Convert from BTUs per Hour-Sq. Foot-°F
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Heat Transfer Coefficient Metrology Standard — BTUs per Hour-Sq. Foot-°F (BTU/(h·ft²·°F)) to Watts per Square Meter-Kelvin (W/(m²·K))
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: BTU per Hour-Sq. Foot-°F (BTU/(h·ft²·°F)) & Watt per Square Meter-Kelvin (W/(m²·K))
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (BTU/(h·ft²·°F) to W/(m²·K))