You're asking about converting -2 degrees Fahrenheit to Celsius. Here's how to do it:

Formula:

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

Where:

* C = Temperature in Celsius

* F = Temperature in Fahrenheit

Calculation:

1. Substitute: C = (-2 - 32) * 5/9

2. Simplify: C = (-34) * 5/9

3. Calculate: C = -18.89°C (approximately)

Therefore, -2 degrees Fahrenheit is approximately -18.89 degrees Celsius.