Because the scales differ in both step size and zero point, the calculation multiplies by 1.8 and then adds 32. The reference table covers freezing, a cool day, room temperature, body temperature and boiling point, so you can judge any result at a glance.
Calculator
Formula used
°F = °C × 9/5 + 32 · °C = (°F − 32) × 5/9
How to use the Celsius to Fahrenheit Converter
- Type a temperature in Celsius.
- Read the Fahrenheit value.
- Or type Fahrenheit to convert to Celsius.
- Check the table for everyday reference points.
About this tool
The Celsius to Fahrenheit Converter is built for speed and accuracy: every calculation runs in your browser, so your data never leaves your device and the result updates as you type. It works equally well on a phone, a tablet or a desktop, and it is free to use as many times as you like.
Common use cases
- Explaining a metric weather forecast to US readers.
- Setting oven temperatures from a European recipe.
- Converting a medical reading for a US record.
- Comparing climate data between countries.
Tips for the best result
- Use the latest figures you have - even a small change in rate or term can shift the outcome by hundreds.
- For annual figures, divide by 12 to get a monthly number you can compare with the result.
- Bookmark this page and revisit the calculation as the inputs change.
Frequently asked questions
Is 37 °C a fever?
37 °C (98.6 °F) is normal body temperature. A fever is usually defined as 38 °C / 100.4 °F or higher.
Why is the formula not just a multiplication?
Fahrenheit sets freezing at 32 rather than 0, so the offset of 32 is required after scaling by 1.8.
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