NTC & RTD resistance calculator
Convert temperature and resistance using an NTC beta model or PT100/PT1000 curves, and calculate the divider output.
Your result
ON YOUR DEVICEEnter your inputs and calculate to see the result.
Match the sensor characteristic.
The NTC beta model uses a 25 °C reference and is an approximation; use the sensor’s beta interval and resistance data. PT100 and PT1000 use Callendar–Van Dusen coefficients A = 3.9083×10⁻³, B = −5.775×10⁻⁷, C = −4.183×10⁻¹² over −200 to 850 °C. Divider results include sensor dissipation, before any self-heating correction.
NTC: R = R25 × exp[β × (1 / T_kelvin − 1 / 298.15)]
Divider: Vout = Vsupply × Rlower / (Rfixed + Rsensor)