Here's how to convert 63 degrees Fahrenheit to Celsius:

Formula:

Celsius = (Fahrenheit - 32) * 5/9

Calculation:

1. Subtract 32 from Fahrenheit: 63 - 32 = 31

2. Multiply by 5/9: 31 * (5/9) = 17.22

Answer: 63 degrees Fahrenheit is approximately 17.22 degrees Celsius.