Fahrenheit to Celsius
Enter a Fahrenheit temperature and instantly get the Celsius equivalent, 100% in your browser.
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Reference table (1-20)
| °F | °C | °F | °C |
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What is Fahrenheit?
Fahrenheit is a temperature scale used mainly in the United States, setting water's freezing point at 32°F and boiling point at 212°F. Created by Daniel Gabriel Fahrenheit in 1724, it provides finer granularity for everyday temperatures, which is why it remains popular for weather reporting and thermostats in the US.
While most of the world uses Celsius, Fahrenheit persists in American daily life — from oven dials and weather forecasts to medical thermometers. Understanding both scales is essential for anyone working across international contexts.
What is Celsius?
Celsius, also called centigrade, is the temperature scale used by most of the world and in the International System of Units (SI). It defines 0°C as the freezing point of water and 100°C as the boiling point, making it intuitive for everyday use. The scale was introduced by Anders Celsius in 1742.
Celsius is the standard in science, medicine, and daily life in nearly every country outside the US. Its simple 0-to-100 framework for water's phase changes makes it easy to teach and understand.
When to convert Fahrenheit to Celsius
Typical scenarios include:
- International weather. Converting US forecasts for non-US audiences or vice versa.
- Recipe adaptation. Converting oven temperatures from US recipes to Celsius for European ovens.
- Scientific work. Most scientific literature uses Celsius or Kelvin, requiring conversion from Fahrenheit data.
- Travel. Understanding local temperature norms when visiting a country that uses a different scale.
How to convert Fahrenheit to Celsius
This tool converts instantly in your browser.
- Enter a value. Type a Fahrenheit temperature in the input box.
- See the result. The Celsius equivalent appears immediately.
- Copy if needed. Click "Copy result" to copy the value.
The formula is °C = (°F - 32) × 5/9. For example, 77°F = (77 - 32) × 5/9 = 25°C. All math is local and private.
Common Fahrenheit to Celsius values
Useful temperature conversions:
| Fahrenheit | Celsius | Description |
|---|---|---|
| 32°F | 0°C | Freezing point of water |
| 50°F | 10°C | Cool day |
| 68°F | 20°C | Room temperature |
| 77°F | 25°C | Warm room |
| 98.6°F | 37°C | Body temperature |
| 212°F | 100°C | Boiling point of water |
What is the formula for Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value and multiply by 5/9: °C = (°F - 32) × 5/9. For example, 68°F = (68 - 32) × 5/9 = 20°C.
Is this Fahrenheit to Celsius converter free?
Yes, completely free with no sign-up, no watermarks and no limits. All processing happens locally in your browser.
Are my inputs uploaded?
No. All calculations are done locally in your browser. Your data never leaves your device.
What is 98.6°F in Celsius?
98.6°F equals 37°C, which is normal human body temperature.