Thermal resistance defines just how resistant a material or substance is to conducting heat or thermal energy. It is very important to know the thermal resistance of a material when working with electronics. Thankfully, calculating thermal resistance is fairly simple if you know the heat-flow rate of the material and the temperature. A common formula used for calculating thermal resistance is Rt = DT/Qh. That is, thermal resistance is equal to the temperature over the heat-flow rate. Thermal resistance is usually measured in watts per kelvin meter.
Type the temperature of the material into the calculator. Make sure the temperature is measured in kelvins.
Press the divide function on the calculator.
Type the heat flow of the material into the calculator. Make sure the heat flow is measured in watts per meter.
Press enter to calculate the thermal resistance of the material.
