Conversion
Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit instantly with a simple, free calculator.
The result shows the same temperature in degrees Fahrenheit, so it can be read directly against a Fahrenheit thermometer or weather report.
Formula
Fahrenheit = Celsius × 9/5 + 32. Multiply by 9, divide by 5, then add 32.
How it works
Enter a Celsius temperature. The calculator applies the standard scale shift and scaling and shows the Fahrenheit equivalent. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at standard pressure.
Worked example
For example, 20 °C gives 20 × 9 ÷ 5 + 32 = 68.00 °F.
FAQs
What is 0 °C in Fahrenheit?
0 °C equals 32 °F, the freezing point of water.
Why add 32?
The Fahrenheit scale sets the freezing point of water at 32 instead of 0, so the 32 shift aligns the two scales before scaling the degree size.
Is −40 the same in both scales?
Yes. −40 °C equals −40 °F, the one temperature where the two scales agree.
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