Here's how to convert 300 degrees Fahrenheit to Celsius:

Formula:

* °C = (°F - 32) × 5/9

Calculation:

1. Subtract 32 from 300: 300 - 32 = 268

2. Multiply by 5/9: 268 × 5/9 = 148.89

Answer: 300 degrees Fahrenheit is equal to approximately 148.89 degrees Celsius.