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Fahrenheit to Celsius Conversion Chart How to convert Fahrenheit to Celsius. 0 degrees Fahrenheit is equal to – 17.77778 degrees Celsius: 0 °F = -17.77778 °C. The temperature T in degrees Celsius.
Temperature Converter Formula
C = Celsius ; F = Fahrenheit ; R = Reaumur ; K = Kelvin
What are 25 degrees Fahrenheit equal to in Celsius?
-3.89 degrees Celsius
25 degrees Fahrenheit = -3.89 degrees Celsius.

How do you estimate Fahrenheit to Celsius?
To estimate a Celsius temperature in Fahrenheit, multiply the temperature by 2, then add 30 to that number. This will give you an approximate temperature in Fahrenheit. If you need a more precise estimate, multiply the temperature by 2, then subtract 10% and add 32 to that number.
F° TO C°: FAHRENHEIT TO CELSIUS CONVERSION FORMULA
To convert temperatures in degrees Fahrenheit to Celsius, subtract 32 and multiply by .5556 (or 5/9).
- Example: (50°F – 32) x .5556 = 10°C
What does 45 degrees Fahrenheit equal in Celsius?
Fahrenheit 45 °F – Celsius 7.22 °C
What is 40 degrees celsius equal to in Fahrenheit?
40 °C Celsius – 104.0 °F Fahrenheit
What is the formula for changing Farenheit to Celcius?
Quick Celsius (°C) / Fahrenheit (°F) Conversion:
°F to °C – Deduct 32, then multiply by 5, then divide by 9
°C to °F – Multiply by 9, then divide by 5, then add 32
Fahrenheit |
Celsius |
---|---|
-40°F | -40°C |
-30°F | -34°C |
-20°F | -29°C |
-10°F | -23°C |
0°F | -18°C |
10°F | -12°C |
20°F | -7°C |
32°F | 0°C |
40°F | 4°C |
50°F | 10°C |
60°F | 16°C |
70°F | 21°C |
80°F | 27°C |
90°F | 32°C |
100°F | 38°C |
C° TO F°: CELSIUS TO FAHRENHEIT CONVERSION FORMULA
To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
- Example: (30°C x 1.8) + 32 = 86°F
Celsius |
Fahrenheit |
---|---|
-40°C | -40°F |
-30°C | -22°F |
-20°C | -4°F |
-10°C | 14°F |
0°C | 32°F |
10°C | 50°F |
20°C | 68°F |
30°C | 86°F |
40°C | 104°F |
50°C | 122°F |
60°C | 140°F |
70°C | 158°F |
80°C | 176°F |
90°C | 194°F |
100°C | 212°F |