EVERYDAY · ENGINEERING · SCIENCE

Unit conversion. Made clear.

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.

ResultW/(m²·K) → BtuIT/(h·ft²·°F)Convert watt per square metre kelvin to Btu per hour square foot degree Fahrenheit

HOW IT IS CALCULATED

Convert through watt per square metre kelvin

Enter a watt per square metre kelvin value to calculate Btu per hour square foot degree Fahrenheit with full internal precision before display rounding.

Display precisionAuto · 12 significant digits

Number format 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 W/(m²·K)	W/(m²·K)	Interactive
kilowatt per square metre kelvinfrom W/(m²·K)	kW/(m²·K)	Interactive
Btu per hour square foot degree Fahrenheitfrom W/(m²·K)	BtuIT/(h·ft²·°F)	Interactive

SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.