Thermal Resistance converter
Convert whole-object thermal resistance in temperature difference per power.
All thermal resistance conversions
Choose your starting unit. Each direction has its own calculator, formula, and examples.
Convert Kelvins per watt
Convert Celsius degrees per watt
Convert Kelvins per kilowatt
Convert Fahrenheit degree hours per Btu IT
Using thermal resistance measurements
These units describe thermal resistance K/W. Area-normalized insulation R-values in m²·K/W need a known area and are not interchangeable with whole-object resistance. Keep these unit conventions consistent when using measurements in construction calculations.
Popular conversions
A shortcut to your next answerThermal ResistanceKelvins per watt to Celsius degrees per wattThermal ResistanceKelvins per watt to kelvins per kilowattThermal ResistanceKelvins per watt to Fahrenheit degree hours per Btu ITThermal ResistanceCelsius degrees per watt to kelvins per wattThermal ResistanceCelsius degrees per watt to kelvins per kilowattThermal ResistanceCelsius degrees per watt to Fahrenheit degree hours per Btu IT