Here's how to convert 20 degrees Celsius to Fahrenheit:

Formula:

* F = (C * 9/5) + 32

Where:

* F = Fahrenheit

* C = Celsius

Calculation:

* F = (20 * 9/5) + 32

* F = (36) + 32

* F = 68

Therefore, 20 degrees Celsius is equal to 68 degrees Fahrenheit.