To convert from C to F, multiply the C temperature by 9/5 and then add 32: -40oC = (9/5 x -40) + 32 = -72 + 32 = -40oF
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To convert Celsius to Fahrenheit, use the formula: Fahrenheit = (Celsius x 9/5) + 32
-40°F = -40°C
If the temperature at the North Pole is -40°C, it is also -40°F. To convert Celsius to Kelvin, you would add 273.15 to the Celsius temperature, so in this case, it would be 233.15 Kelvin.
The same number, -40 C. F = 9/5 C + 32 C = 5/9 (F -32), F is -40 C = 5/9 (-40 -32) C = 5/9 (- 72) C = - (5 x 72) / 9 C = - 360 / 9 C = -40 In your head: "twice C minus 10% plus 32 is F" 2 x -40 C = -80; -80 - (-8) = -72; -72 +32 = -40 F Similarly, 2x100C-20+32= 212F, boiling point of pure water at STP
40 degrees Fahrenheit = 4.4 degrees Celsius [°C] = ([°F] − 32) × 5⁄9