How many degrees Celsius in 15 kelvins?

How to convert 15 kelvins to degrees Celsius using the formula?

1 kelvin equals 1 degree Celsius. The difference between the scales is only in the starting point. To convert the temperature 15 kelvins from Celsius to kelvins, subtract a fixed value of 273.15 from the kelvins:

15 K - 273.15 = -258.15°С