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°C to °F

Convert Celsius to Fahrenheit instantly. Enter a temperature in degrees Celsius and read it in degrees Fahrenheit.

What this tool does

Convert Celsius to Fahrenheit instantly. Enter a temperature in degrees Celsius and read it in degrees Fahrenheit. Type an amount in degrees Celsius, choose the units, and the tool converts it to degrees Fahrenheit. It converts between these two temperature units, in either direction.

Inputs

  • Value: A number.
  • From: Choose one: Degree Celsius, Degree Fahrenheit. Starts as Degree Celsius.
  • To: Choose one of the same 2 units as "From". Starts as Degree Fahrenheit.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount. It appears once every required field has a valid value.

Worked examples

Conversions from degrees Celsius to degrees Fahrenheit:

  • 1 °C = 33.8 °F
  • 5 °C = 41 °F
  • 10 °C = 50 °F
  • 50 °C = 122 °F
  • 100 °C = 212 °F

Multiply the number of degrees Celsius by 1.8, then add 32, to get degrees Fahrenheit. This formula follows from exact definitions.

Sources: Degree Celsius: SI Brochure, 9th edition (2019). Degree Fahrenheit: NIST SP 811 (2008), Appendix B.8.

Limitations

  • Converts a temperature reading only. A temperature difference, such as a rise of 10 degrees, converts differently because it has no offset.
  • Nothing below absolute zero is accepted.

FAQs

Q: How do I convert Celsius to Fahrenheit?
A: Multiply by 9/5 (1.8) and add 32.
Q: What is 0 °C and 100 °C in Fahrenheit?
A: 0 °C is 32 °F and 100 °C is 212 °F, close to the freezing and boiling points of water at standard pressure.
Q: Can I convert the other way?
A: Yes. Choose Fahrenheit as the From unit and Celsius as the To unit.

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