Heat transfer coefficient converter

Convert heat-transfer coefficients used in HVAC, building science and thermal design. Use the interactive converter to enter your own value and select any supported pair in this family.

Popular conversions

Use the interactive converter to enter your own value and select any supported pair in this family.

Supported units (6)

Each row links to the live converter. The factor column uses the family’s stated base unit for linear families; for specialized reciprocal or numeral systems, use the live converter and the family-specific explanation.

Source unitFactor to base unitTool
watt per square meter kelvin
W-m2K
1Convert this unit ↗
milliwatt per square meter kelvin
mW-m2K
0.001Convert this unit ↗
kilowatt per square meter kelvin
kW-m2K
1000Convert this unit ↗
BTU per hour square foot degree Fahrenheit
Btu-h-ft2F
5.678263341Convert this unit ↗
kilocalorie per hour square meter degree Celsius
kcal-h-m2C
1.163Convert this unit ↗
calorie per second square centimeter degree Celsius
cal-s-cm2C
41840Convert this unit ↗

Important note

Unit standards, historical definitions and approximations can vary. Cooking volume-to-mass conversions depend on the ingredient; currencies require an exchange rate; sizing systems may be discrete; and logarithmic quantities such as decibels need purpose-built formulas rather than a linear scale.

For laboratory, medical, aviation, engineering or other safety-critical work, verify the definitions and standards that apply to your use case.