Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius instantly. Exact formula, quick chart and examples. Free, no signup.
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About the Fahrenheit to Celsius Converter
This free Fahrenheit to Celsius converter gives the exact result as you type, with no button to press and no signup. It is built for everyday use in the US: recipes, travel, fitness, weather, school work and shopping. The formula and a quick reference chart are included below so you can check the math yourself.
Need the opposite direction? Use the Celsius to Fahrenheit converter.
How to use it
- Type the number of Fahrenheit in the first box.
- Read the result in Celsius immediately below.
- Use the chart on this page for common values you can check at a glance.
Fahrenheit to Celsius formula
°C = (°F − 32) × 5/9
Example: 72 °F × conversion = 22.222 °C.
Quick mental estimate: subtract 30 from the Fahrenheit number and halve it. For 70 °F that gives 20 °C (exact: 21.1 °C). Good enough for weather.
°F to °C chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.78 °C |
| 32 °F | 0 °C |
| 50 °F | 10 °C |
| 68 °F | 20 °C |
| 72 °F | 22.22 °C |
| 77 °F | 25 °C |
| 86 °F | 30 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.78 °C |
| 212 °F | 100 °C |
| 350 °F | 176.67 °C |
| 400 °F | 204.44 °C |
| 425 °F | 218.33 °C |
°C to °F reverse chart
Going the other way? These are the same values read backwards.
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -17.78 °C | 0 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 22.22 °C | 72 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 37.78 °C | 100 °F |
| 100 °C | 212 °F |
| 176.67 °C | 350 °F |
| 204.44 °C | 400 °F |
| 218.33 °C | 425 °F |
About Fahrenheit and Celsius
Fahrenheit is the everyday temperature scale in the United States. Converting to Celsius is needed for science classes, international travel, imported appliances and recipes from outside the US. Water freezes at 32 °F (0 °C) and boils at 212 °F (100 °C) at sea level.
Common uses
- Reading foreign weather forecasts and appliance settings.
- Converting oven temperatures such as 350 °F (about 177 °C) and 425 °F (about 218 °C).
- Lab and school work that requires SI units.
Frequently asked questions
What is 98.6 °F in Celsius?
Normal body temperature, 98.6 °F, is 37 °C.
What is 350 °F in Celsius?
A common oven setting, 350 °F, is about 177 °C (gas mark 4).
What is 72 °F in Celsius?
72 °F is about 22.2 °C, a comfortable room temperature.
What is 32 °F in Celsius?
Water freezes at 32 °F, which is 0 °C.
What is the formula to convert Fahrenheit to Celsius?
°C = (°F − 32) × 5/9. This page applies it for you instantly as you type.
Last reviewed: November 2026.
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