Celsius to Fahrenheit converter (°C to °F)
Convert Celsius (°C) to Fahrenheit (°F) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert Celsius to Fahrenheit
20 degrees Celsius is equal to 68 degrees Fahrenheit.
T(°F) = T(°C) × 9÷5 + 32
Using the Celsius to Fahrenheit conversion formula:
Example: Convert 20°C to Fahrenheit:
T(°F) = 20 × 9÷5 + 32 = 68°F
What is a Celsius?
Celsius (°C) is the metric temperature scale. Water freezes at 0 °C and boils at 100 °C at standard pressure.
What is a Fahrenheit?
Fahrenheit (°F) is the temperature scale used in the United States. Water freezes at 32 °F and boils at 212 °F.
This page converts temperature from Celsius into Fahrenheit. Use the formula above for the exact relationship between the two units.
How this calculator works
The form on this page is a Celsius-to-Fahrenheit converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the °F result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many °F are in 1 °C?
Use the formula in the section above. Temperature and logarithmic units are not a single multiply-by-a-constant step.
How do I convert Celsius to Fahrenheit?
Using the Celsius to Fahrenheit conversion formula:
Is this °C to °F converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.