RTD calculator

 
Resistance calculator for platinum RTDs in conformance with IEC 60751

How to use the RTD resistance calculator:

  1. Enter the RTD resistance at 0°C. (Most RTDs have a resistance of 100 ohms at 0°C).
  2. Enter the RTD temperature in °C.
  3. Read the RTD resistance

 

Resistance calculator for platinum RTDs in conformance with IEC 60751:

 

 

Callendar-Van Dusen equations:

RTD temperature ≥ 0°C: Rt = R0(1+At+Bt2)

RTD temperature < 0°C: Rt = R0[1+At+Bt2+C(t-100)t3]

 

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