The two temperature scales do not have the same unit size. The difference between 80 and 90 ºF is not the same size as between 80 to 90 ºC.
Celsius = (Fahrenheit - 32) x 5/9
15 degrees Fahrenheit = -9.4 degrees Celsius.
-18 degrees Celsius = -0.4 degrees Fahrenheit
98.6 degrees Fahrenheit is 37 degrees Celsius.
12 degrees Fahrenheit = -11.11 degrees Celsius
37.1 degrees Celsius is 98.78 degrees Fahrenheit.
-180 degrees Celsius is -292 degrees Fahrenheit.
1 degree Celsius = 33.8 degrees Fahrenheit.
15 degrees Fahrenheit = -9.4 degrees Celsius.
39 degrees Celsius = 102.2 degrees Fahrenheit.
-12 degrees Fahrenheit = -24.4 degrees Celsius.
108 degrees Fahrenheit = 42.2 degrees Celsius.
410 degrees Fahrenheit = 210 degrees Celsius
145 degrees Celsius = 293 degrees Fahrenheit
410 degrees Celsius = 770 degrees Fahrenheit.
382 degrees Fahrenheit = 194.4 degrees Celsius.
(-210) degrees Celsius = -346 degrees Fahrenheit
500 degrees Celsius = 932 degrees Fahrenheit.