KY028 Temperature Sensor example

If I dump the analog output straight to the serial output I get numbers such as 220 for my household temp, 170 for my finger tip and 300+ after touching the tip with ice. How would I translate this to actual temps? Of course I must consider that these may be F temps, not C temps but higher for colder?? Do I need to us 'map' to convert values? Thanks.
Mark