Convert Fahrenheit to Celsius
0 °F is -17.7778 °C. To convert degrees Fahrenheit to degrees Celsius, subtract 32 and multiply by 5/9: for example, 68 °F is 20 °C. Ethical Tube's free Fahrenheit to Celsius converter does the math as you type, and the chart below lists common values.
1 °F = -17.2222 °C
- 0 °F
- -17.7778 °C
- 100 °F
- 37.7778 °C
- Formula
- °C = (°F − 32) × 5/9
- Measures
- Temperature
- Price
- Free
- Works offline
- Yes
Conversion chart
Fahrenheit to Celsius chart
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.7778 °C |
| 32 °F | 0 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |
| 68 °F | 20 °C |
| 72 °F | 22.2222 °C |
| 80 °F | 26.6667 °C |
| 90 °F | 32.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 212 °F | 100 °C |
How it works
How to convert Fahrenheit to Celsius
Know the formula
°C = (°F − 32) × 5/9. In words: subtract 32 and multiply by 5/9.
Work an example
68 °F → 20 °C. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About temperature units
- Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level.
- Kelvin starts at absolute zero, −273.15 °C, and uses the same step size as Celsius. It's written without a degree sign.
- −40 is the same temperature in Celsius and Fahrenheit.
FAQ
Questions, answered
How do you convert Fahrenheit to Celsius?
To convert degrees Fahrenheit to degrees Celsius, subtract 32 and multiply by 5/9. The formula is °C = (°F − 32) × 5/9. For example, 68 °F is 20 °C.
What is 68 Fahrenheit in Celsius?
68 degrees Fahrenheit is 20 degrees Celsius.
What is the formula for Fahrenheit to Celsius?
°C = (°F − 32) × 5/9. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level.
Is this Fahrenheit to Celsius converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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