Fahrenheit to Celsius (°F to °C)

Answer
20 °C = 68 °F

68 °F = 20 °C. Formula: °C = (°F − 32) × 5/9. Fahrenheit is the everyday temperature scale in the US.

Free, no sign-upInstant resultsUpdated October 2026
Converted temperature
–
How we calculated this

    For estimating and educational purposes only. Results are approximate and are not a substitute for a licensed professional, the manufacturer's instructions or your local code. Disclaimer

    Formula

    °C = (°F − 32) × 5/9 100 °F → 37.78 °C

    Fahrenheit to Celsius table

    °F°C
    -40 °F-40 °C
    -4 °F-20 °C
    0 °F-17.78 °C
    10 °F-12.22 °C
    14 °F-10 °C
    20 °F-6.67 °C
    32 °F0 °C
    40 °F4.44 °C
    50 °F10 °C
    60 °F15.56 °C
    68 °F20 °C
    70 °F21.11 °C
    75 °F23.89 °C
    77 °F25 °C
    80 °F26.67 °C
    86 °F30 °C
    90 °F32.22 °C
    95 °F35 °C
    98.6 °F37 °C
    100 °F37.78 °C
    104 °F40 °C
    212 °F100 °C
    350 °F176.67 °C
    400 °F204.44 °C
    450 °F232.22 °C

    Factors from NIST SP 811 and the BIPM SI Brochure; values rounded to 6 significant digits. Reverse: Celsius to Fahrenheit.

    Frequently asked questions

    How many °C is 100 °F?

    100 °F = 37.78 °C.

    What is 32 °F in °C?

    32 °F = 0 °C.

    Open the full calculator: Temperature Converter: Fahrenheit to Celsius, Kelvin and Rankine →