Is the temperature reading of zero on the Celsius equal to absolute zero?

NO!!!!

0 oC ( Zero degrees celcius) is the freezing point of water.

To compare

0 K ( Zero Kelvin (Absolute scale) is ' -273 oC '. It this temperature 'molecular motion (theoretically) stops'.

273 K is the freezing point of water.

To compare

32 oF ( Thirty two degrees Fahrenheit) is the freezing point of water.

The boiling points of water are

100 oC , 373 K , and 212 oF .