Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.
520units ready to convert
THERMAL
Heat transfer coefficient
Surface heat-transfer and U-value units.
Try a decimal, 1e-9, 1/3, or 5 1/2.
ResultBtuIT/(h·ft²·°F) → kW/(m²·K)Convert Btu per hour square foot degree Fahrenheit to kilowatt per square metre kelvin
HOW IT IS CALCULATED
Convert through watt per square metre kelvin
Enter a Btu per hour square foot degree Fahrenheit value to calculate kilowatt per square metre kelvin with full internal precision before display rounding.
Display precisionAuto · 12 significant digits
Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.
QUICK REFERENCE
All units in this quantity
Unit
Symbol
Converted value
watt per square metre kelvinfrom BtuIT/(h·ft²·°F)
W/(m²·K)
Interactive
kilowatt per square metre kelvinfrom BtuIT/(h·ft²·°F)
kW/(m²·K)
Interactive
Btu per hour square foot degree Fahrenheitfrom BtuIT/(h·ft²·°F)
BtuIT/(h·ft²·°F)
Interactive
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.