mC°

milli-Celsius degree (difference)

Temperature differenceexact by definition

A milli-Celsius degree is a difference of 0.001 °C, which is identical to a millikelvin because the Celsius degree and the kelvin are the same size. It exists as a separate entry because instrument datasheets write accuracy as ±10 m°C rather than ±10 mK, and a reader should be able to type what is printed.

1 mC° 0.001 C°