Convert Celsius to Fahrenheit instantly. This free converter turns any °C value into °F using °F = °C × 1.8 + 32, and also shows Kelvin and the working.
Celsius
°C
Enter a temperature in degrees Celsius to convert it to Fahrenheit. The formula is °F = °C × 9/5 + 32.
Fahrenheit
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Enter a value in °C
Kelvin
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The maths
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To convert Celsius to Fahrenheit, multiply by 9/5 (that’s 1.8) and add 32. For example, 37 °C × 1.8 = 66.6, plus 32 = 98.6 °F. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F).
Use this free Celsius to Fahrenheit converter to change any temperature from °C to °F instantly. Enter a Celsius value and get the exact Fahrenheit result, plus Kelvin.
How to convert Celsius to Fahrenheit
To convert Celsius to Fahrenheit, multiply the temperature by 9/5 (1.8) and add 32.
°F = °C × 9/5 + 32
= °C × 1.8 + 32
For example, 37 °C × 1.8 = 66.6, plus 32 = 98.6 °F — normal body temperature.
Celsius to Fahrenheit chart
Celsius
Fahrenheit
Note
−40 °C
−40 °F
where the scales meet
0 °C
32 °F
water freezes
20 °C
68 °F
room temperature
37 °C
98.6 °F
body temperature
100 °C
212 °F
water boils
Celsius and Fahrenheit explained
Celsius is used in most of the world and sets 0° at freezing and 100° at boiling. Fahrenheit, common in the United States, puts those points at 32° and 212°. The ×1.8 factor reflects that there are 180 Fahrenheit degrees between freezing and boiling versus 100 Celsius degrees.
How to use the converter
Type the temperature in °C (negatives are fine).
Read the Fahrenheit result instantly.
See Kelvin and the working in the breakdown.
Celsius to Fahrenheit FAQ
How do I convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (1.8) and add 32. For example, 37 °C × 1.8 + 32 = 98.6 °F.
What is 0 degrees Celsius in Fahrenheit?
0 °C is 32 °F — the freezing point of water.
What is 100 degrees Celsius in Fahrenheit?
100 °C is 212 °F — the boiling point of water at sea level.
What is normal body temperature in Fahrenheit?
37 °C, the standard body temperature, equals 98.6 °F.
At what temperature are Celsius and Fahrenheit equal?
At −40°, where −40 °C equals −40 °F.
Is the Celsius to Fahrenheit converter free?
Yes, this converter is completely free, needs no sign-up, and gives instant results in your browser.
