Fahrenheit to Celsius Converter
98.6 °F = 37 °C.
Enter a value
Result
1 degree Fahrenheit =
-17.2222 °C
1 °F = -17.2222 °C
°F = °C × 9/5 + 32
The working
- Convert 1 °F to the base unit (kelvin): 255.928.
- Convert that to °C: -17.2222.
1 °F in every unit
Key reference points
- Water freezes
- 0 °C = 32 °F
- Room temperature
- 20 °C = 68 °F
- Body temperature
- 37 °C = 98.6 °F
- Water boils
- 100 °C = 212 °F
- Absolute zero
- −273.15 °C = 0 K
Conversion table
Degrees Fahrenheit to Degrees Celsius
| Degrees Fahrenheit | Degrees Celsius |
|---|---|
| -40 | -40 |
| 0 | -17.778 |
| 32 | 0 |
| 50 | 10 |
| 60 | 15.556 |
| 68 | 20 |
| 70 | 21.111 |
| 75 | 23.889 |
| 80 | 26.667 |
| 90 | 32.222 |
| 98.6 | 37 |
| 100 | 37.778 |
| 212 | 100 |
| 350 | 176.67 |
| 400 | 204.44 |
| 450 | 232.22 |
Degrees Celsius to Degrees Fahrenheit
| Degrees Celsius | Degrees Fahrenheit |
|---|---|
| -40 | -40 |
| 0 | 32 |
| 32 | 89.6 |
| 50 | 122 |
| 60 | 140 |
| 68 | 154.4 |
| 70 | 158 |
| 75 | 167 |
| 80 | 176 |
| 90 | 194 |
| 98.6 | 209.48 |
| 100 | 212 |
| 212 | 413.6 |
| 350 | 662 |
| 400 | 752 |
| 450 | 842 |
Formula and worked example
°C = (°F − 32) × 5/9
Convert 98.6 °F to °C: using °C = (°F − 32) × 5/9, 98.6 °F = 37 °C.
When you need this
US weather forecasts, oven dials and body temperatures use Fahrenheit, while most of the world, science and medicine use Celsius. Oven temperatures in US recipes are the most common reason to convert.
Questions people ask
What is 80 °F in °C?
80 °F is 26.6667 °C.
What is the formula for degrees Fahrenheit to degrees Celsius?
°C = (°F − 32) × 5/9.
Why can't I just multiply by one number?
The scales start from different zero points, so you have to add or subtract an offset as well as scale the value.
How do I convert degrees Celsius back to degrees Fahrenheit?
Use the reverse conversion: 26.6667 °C is 80 °F.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
Spotted a mistake? Tell us and we'll check it. How we check our calculators