66f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 0.286 celsius

Step 2: Set up the calculation

To convert 66 fahrenheit to celsius, multiply 66 by the conversion factor 0.286:

66×0.286

Step 3: Calculate

66×0.286=18.889

Step 4: Round the result

The result is approximately: 19 celsius

Final Answer:

66 fahrenheit is approximately 19 celsius.