40 degrees celsius below zero is how many degrees Fahrenheit?

Answer 1

This is the one (and only) number where the Fahrenheit and Celsius scales are equal.

Thus -40 deg C = -40 deg F

Answer 2

40 degrees Celsius below zero is equal to -40 degrees Celsius. To convert -40 degrees Celsius to Fahrenheit, use the formula °F = (°C × 9/5) + 32. Therefore, -40 degrees Celsius is equal to -40 degrees Fahrenheit.