Celsius to Fahrenheit Converter
Enter a temperature in Celsius to see it in Fahrenheit right away. Edit either box and the other updates live. The math runs in your browser.
How to convert Celsius to Fahrenheit
- Type the temperature in Celsius into the left box.
- Read the Fahrenheit value in the right box as it updates live.
- Edit the Fahrenheit box instead to convert back to Celsius.
Examples
Boiling water
100 °C
212 °F
Body temperature
37 °C
98.6 °F
Frequently asked questions
What is the formula to convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5, then add 32. So F = C times 9/5 plus 32. For example, 20 C becomes 20 times 1.8 plus 32, which is 68 F.
What is normal body temperature in Fahrenheit?
Normal body temperature is about 37 C, which is 98.6 F. A reading of 38 C equals 100.4 F and is generally considered a fever.
What are some common Celsius to Fahrenheit conversions?
0 C is 32 F (water freezes), 20 C is 68 F (room temperature), 37 C is 98.6 F (body), and 100 C is 212 F (water boils at sea level).
At what temperature are Celsius and Fahrenheit equal?
They meet at -40 degrees: -40 C is exactly -40 F. It is the only point where both scales read the same number.
Is this conversion exact?
Yes. The formula is exact, so 100 C is exactly 212 F. Results are rounded for display, but the underlying calculation is precise.
Is my data sent anywhere?
No. The conversion runs entirely in your browser, so the temperatures you enter never leave your device.
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