-1f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 18.333 celsius

Step 2: Set up the calculation

To convert -1 fahrenheit to celsius, multiply -1 by the conversion factor 18.333:

-1×18.333

Step 3: Calculate

-1×18.333=-18.333

Step 4: Round the result

The result is approximately: -18.33 celsius

Final Answer:

-1 fahrenheit is approximately -18.33 celsius.