Thermal Resistance Converter
Convert thermal resistance units for heat-flow and component calculations.
How to Use the Thermal Resistance Converter
Enter a thermal resistance value, select the source unit and choose the target unit to compare common heat-flow resistance units.
Practical Example
A thermal resistance of 2 K/W means a 2 K temperature difference is associated with one watt of heat flow under the stated conditions.
Factors That Affect Thermal Resistance
Material thickness, area, contact resistance, airflow, mounting and temperature can affect real thermal resistance.
Frequently Asked Questions
What does K/W mean?
Kelvin per watt, a common thermal-resistance unit.
Is higher thermal resistance better insulation?
Generally yes, for the same geometry and conditions.
Is thermal resistance the inverse of conductivity?
Not directly. Geometry and material thickness also matter.
Understanding Thermal Resistance Units
Thermal resistance describes the temperature difference required to drive a given heat flow and is commonly expressed in K/W or °F·h/Btu. It is useful for components, insulation layers and heat-transfer paths.
The converter changes units only. Actual thermal resistance depends on geometry, material properties, contact conditions and airflow, so a converted value should be applied to the same physical configuration from which it was derived.
Unit Relationship and Practical Context
Thermal resistance relates temperature difference to heat-flow rate, commonly K/W for a component. Area-normalized R-values use different dimensions, so confirm whether the source value is total thermal resistance or resistance per unit area before converting.