Type K temperature to millivolt converter
Convert a Type K process temperature in degrees Celsius to the nominal EMF in millivolts at a 0 °C reference junction, showing which two verified reference points the value sits between.
Result
Enter a process temperature in degrees Celsius to see the nominal Type K EMF.
-mV
Outside the verified table
Method
Linear interpolation between adjacent published reference points at 100 °C spacing, at a 0 °C reference junction. This is the nominal standardised curve, your spool's actual output sits within its tolerance class of it.
Frequently Asked Questions (FAQ)
What does this Type K temperature to millivolt converter give me?
The EMF a Type K thermocouple should develop at the temperature you enter, at a 0 °C reference junction. It is the same verified reference set used the other way round, useful for setting an instrument's expected reading, sizing a signal range, or checking a loop against a known temperature.
Does the result include the tolerance of my wire?
No. The table value is the nominal EMF for a standardised Type K pair to IEC 60584-1 / ASTM E230. A real spool sits somewhere inside its tolerance class of that nominal curve, which is what a batch EMF certificate proves. Treat this figure as the reference, not as your spool's guaranteed output.
Why can the answer differ slightly from my instrument?
Three common reasons: the cold junction in your instrument is not held at 0 °C, the input is being corrected by a fitted polynomial rather than the reference points, or the wire itself is outside its class band. The tool states the interpolated bracket so you can tell a rounding difference from a real offset.
Can I use this for Type J, T, E, N, R, S or B?
No, and deliberately so. Only Type K has a complete verified millivolt table in our reference data. Publishing a converter for the other types would mean inventing values between published points, so those types are supplied with a batch EMF certificate against IEC 60584-1 / ASTM E230 instead.
Need a certified Type K spool?
Send the gauge, accuracy class and run length, we supply bare and stranded Type K with a furnace-batch-traceable EMF certificate.