-70f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 0.81 celsius

Step 2: Set up the calculation

To convert -70 fahrenheit to celsius, multiply -70 by the conversion factor 0.81:

-70×0.81

Step 3: Calculate

-70×0.81=-56.667

Step 4: Round the result

The result is approximately: -57 celsius

Final Answer:

-70 fahrenheit is approximately -57 celsius.