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Converters

Celsius to Fahrenheit Converter (°C to °F)

Celsius to Fahrenheit is a daily need for weather, cooking and travel. Unlike most conversions it needs an offset as well as a scale factor, because the two scales start at different zeros.

Celsius to Fahrenheit Converter (°C to °F) — °F = °C × 9⁄5 + 32
Fahrenheit (°F)
Converted value hidden until you press Convert.

Processed — press the button to show the result.

Need more units? Open the full converter.

How the conversion works

Multiply the Celsius value by 9⁄5 and add 32. The widget opens at 20 °C, which converts to 68 °F. Reverse the direction by subtracting 32 first and multiplying by 5⁄9.

Changes versus readings

The +32 offset applies to temperature readings only. A change of 10 Celsius degrees equals a change of 18 Fahrenheit degrees — no offset involved.

Keep in mind

  • Readings below absolute zero in Kelvin are rejected as invalid.
  • Sensor calibration and display rounding still limit real-world precision.

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