-9 f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 2.531 celsius

Step 2: Set up the calculation

To convert -9 fahrenheit to celsius, multiply -9 by the conversion factor 2.531:

-9×2.531

Step 3: Calculate

-9×2.531=-22.778

Step 4: Round the result

The result is approximately: -23 celsius

Final Answer:

-9 fahrenheit is approximately -23 celsius.