Heat Transfer Coefficient conversion
BTU per Hour-Square Foot-Fahrenheit to Watts per Square Meter-Kelvin Converter
Put the known BTU per hour-square foot-degree Fahrenheit figure into the field to see the corresponding watts per square meter-kelvin figure. Calculation details show how the answer was obtained and how it can be checked.
Where the conversion appears for BTU per Hour-Square Foot-Fahrenheit to Watts per Square Meter-Kelvin
People compare BTU per hour-square foot-degree Fahrenheit with watts per square meter-kelvin in thermal transmittance, building assemblies, equipment, and SI documentation.
The btu per hour-square foot-fahrenheit to watts per square meter-kelvin answer preserves the same heat transfer coefficient quantity while changing its label from BTU/(h·ft²·°F) to W/(m²·K).
Following the coefficient in BTU per Hour-Square Foot-Fahrenheit to Watts per Square Meter-Kelvin
The numerical bridge from BTU/(h·ft²·°F) to W/(m²·K) is 5.678263337. Multiply BTU per hour-square foot-degree Fahrenheit by 5.678263337 to obtain watts per square meter-kelvin.
Multiply BTU per hour-square foot-degree Fahrenheit by 5.678263337 to obtain watts per square meter-kelvin.
To audit btu per hour-square foot-fahrenheit to watts per square meter-kelvin in the other direction, Divide watts per square meter-kelvin by 5.678263337 to return to BTU per hour-square foot-degree Fahrenheit.
A worked figure: BTU/(h·ft²·°F) to W/(m²·K)
Enter 2 BTU/(h·ft²·°F). The answer is 11.356526674 W/(m²·K), following 2 × 5.678263337 = 11.356526674.
The three benchmark cases below keep the btu per hour-square foot-fahrenheit to watts per square meter-kelvin coefficient unchanged while the input magnitude varies.
1 BTU/(h·ft²·°F)5.678263337 W/(m²·K)
2 BTU/(h·ft²·°F)11.356526674 W/(m²·K)
5 BTU/(h·ft²·°F)28.391316685 W/(m²·K)
Accuracy that matters for watts per square meter-kelvin
Keep additional W/(m²·K) digits when watts per square meter-kelvin will enter a subsequent formula; round after that work is complete.
The accuracy of BTU per hour-square foot-degree Fahrenheit still limits the defensible accuracy of watts per square meter-kelvin. Extra decimals cannot improve the original BTU/(h·ft²·°F) measurement.
A separate reasonableness audit for BTU per Hour-Square Foot-Fahrenheit to Watts per Square Meter-Kelvin
One BTU/(h·ft²·°F) corresponds to 5.678263337 W/(m²·K); compare the answer with that benchmark.
Reversing 11.356526674 W/(m²·K) should return about 2 BTU/(h·ft²·°F).
Definitions behind BTU/(h·ft²·°F) and W/(m²·K)
Use BTU/(h·ft²·°F) only for BTU per hour-square foot-degree Fahrenheit and W/(m²·K) only for watts per square meter-kelvin. The btu per hour-square foot-fahrenheit to watts per square meter-kelvin scale is 5.678263337.
A heat-transfer coefficient relates heat flux to temperature difference and depends on the modeled boundary or assembly. The btu per hour-square foot-fahrenheit to watts per square meter-kelvin definition is limited to BTU per hour-square foot-degree Fahrenheit and watts per square meter-kelvin; a similarly titled quantity requires its own documented relationship. A number lacking a unit cannot show which side of btu per hour-square foot-fahrenheit to watts per square meter-kelvin it belongs to. Keep BTU/(h·ft²·°F) or W/(m²·K) attached whenever the figure is copied.
Carrying the W/(m²·K) answer forward
Keep the unrounded W/(m²·K) figure when watts per square meter-kelvin enters a total or formula. Store the input BTU/(h·ft²·°F) amount beside it, and rerun btu per hour-square foot-fahrenheit to watts per square meter-kelvin if BTU per hour-square foot-degree Fahrenheit changes.
The broad heat transfer coefficient converter can take btu per hour-square foot-fahrenheit to watts per square meter-kelvin into a broader set of units. A neighboring pair is watts per square meter-kelvin to btu per hour-square foot-fahrenheit.
The unit ratio for BTU per Hour-Square Foot-Fahrenheit to Watts per Square Meter-Kelvin
One BTU/(h·ft²·°F) maps to 5.678263337 W/(m²·K). Reversing the btu per hour-square foot-fahrenheit to watts per square meter-kelvin scale associates one W/(m²·K) with 0.176110184 BTU/(h·ft²·°F).
Place W/(m²·K) above BTU/(h·ft²·°F) in a dimensional-analysis fraction so the input-unit symbol cancels. An upside-down ratio would produce the conversion in reverse.
Using watts per square meter-kelvin in context
In thermal transmittance, building assemblies, equipment, and SI documentation, copying the input stripped of its label can hide whether it began in BTU/(h·ft²·°F). Keep the BTU per hour-square foot-degree Fahrenheit label visible until btu per hour-square foot-fahrenheit to watts per square meter-kelvin is complete.
When several watts per square meter-kelvin values are combined, convert every input to W/(m²·K) first. Mixing BTU/(h·ft²·°F) and W/(m²·K) in one total would make the total uninterpretable even if each individual number looked reasonable.
Questions about btu per hour-square foot-fahrenheit to watts per square meter-kelvin
What is the formula for btu per hour-square foot-fahrenheit to watts per square meter-kelvin?
Multiply BTU per hour-square foot-degree Fahrenheit by 5.678263337 to obtain watts per square meter-kelvin. Divide watts per square meter-kelvin by 5.678263337 to return to BTU per hour-square foot-degree Fahrenheit.
How can I audit the watts per square meter-kelvin answer?
Reverse the shown watts per square meter-kelvin amount with the inverse btu per hour-square foot-fahrenheit to watts per square meter-kelvin rule. It should reproduce the entered BTU per hour-square foot-degree Fahrenheit within the shown accuracy.
Does zero BTU/(h·ft²·°F) equal zero W/(m²·K)?
Yes. Zero BTU/(h·ft²·°F) maps to zero W/(m²·K) because btu per hour-square foot-fahrenheit to watts per square meter-kelvin has no zero-point offset.