1/T = A + B * ln(R) + C * (ln(R))3

• T is the temperature (in Kelvin)
• R is the resistance at T (in ohms)
• A, B, and C are the Steinhart-Hart coefficients which vary depending on the type and model of thermistor and the temperature range of interest. (The most general form of the applied equation contains a [ln(R)]² term, but this is frequently neglected because it is typically much smaller than the other coefficients, and is therefore not shown above.)