Is the SI unit of temperature celsius or kelvin? thanks

kelvin.

Celcius is on a temperature scale.

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yes that is very true John thank you for the help

The SI unit of temperature is Kelvin (K), not Celsius (°C). Kelvin is the unit of temperature in the International System of Units (SI) and is based on the absolute temperature scale. Celsius, on the other hand, is commonly used for everyday temperature measurements but is not an SI unit.

To convert temperature from Celsius to Kelvin, you can use the following formula:

K = °C + 273.15

Simply add 273.15 to the Celsius temperature to obtain the equivalent value in Kelvin. Conversely, to convert temperature from Kelvin to Celsius, you can use the formula:

°C = K - 273.15

By subtracting 273.15 from the Kelvin value, you can convert it to the equivalent Celsius temperature.