(32°F − 32) × 5/9 = 0°C
(0°C × 9/5) + 32 = 32°F
You can type a degree symbol "°" with your keyboard using key combinations on a computer or numerical keyboard menus on a phone or tablet.
On a PC you can use the numpad code Alt + 0176. Press and hold the Alt key while typing in "0176" and then release the Alt key and the "°" will appear.