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Thermal Conductivity Converter

Convert thermal conductivity units such as W/(m·K), kcal/(m·h·°C), cal/(cm·s·°C), and BTU/(ft·h·°F). Just enter a value and unit to see every unit at once.

Input

Convert from

Result

In W/(m·K)

1W/(m·K)

UnitSymbolConverted value
Watt per meter-kelvinW/(m·K)1
Kilocalorie per meter-hour-degree Celsiuskcal/(m·h·℃)0.860422
Calorie per centimeter-second-degree Celsiuscal/(cm·s·℃)0.002388
BTU per foot-hour-degree FahrenheitBTU/(ft·h·°F)0.577789
Watt per centimeter-kelvinW/(cm·K)0.01

How it works

  • Just enter a value and pick a unit to convert it to the main thermal conductivity units, using the SI unit W/(m·K) as the base.
  • kcal/(m·h·°C) is about 1.16 W/(m·K) and BTU/(ft·h·°F) is about 1.73 W/(m·K), calculated with the values conventionally used in engineering.
  • cal/(cm·s·°C) is a CGS-system unit and equals a very large value of about 418.68 W/(m·K) per unit.
  • Handy when you want to compare thermal conductivity figures listed in building or insulation material catalogs using familiar units.
  • Extremely large or small numbers are shown in exponential notation; all other values use readable digit grouping.
  • The lower the thermal conductivity, the harder a material conducts heat, meaning higher insulating performance.