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Fahrenheit to Celsius Conversion Information
Converting Fahrenheit to Celsius is necessary when working with temperature measurements from the United States (which uses Fahrenheit) and most other countries worldwide (which use Celsius).
How to Convert Fahrenheit to Celsius
To convert Fahrenheit to Celsius, use the following formula:
°C = (°F - 32) × 5/9
Fahrenheit to Celsius Conversion Table
| Fahrenheit (°F) | Celsius (°C) | Description |
|---|---|---|
| -40°F | -40°C | Equal temperature point |
| 0°F | -17.78°C | Very cold |
| 32°F | 0°C | Freezing point of water |
| 50°F | 10°C | Cool |
| 68°F | 20°C | Room temperature |
| 86°F | 30°C | Hot |
| 98.6°F | 37°C | Average body temperature |
| 104°F | 40°C | Very hot |
| 212°F | 100°C | Boiling point of water |
Common Fahrenheit to Celsius Conversions
- 32°F = 0°C (freezing point of water)
- 68°F = 20°C (room temperature)
- 98.6°F = 37°C (normal body temperature)
- 212°F = 100°C (boiling point of water at sea level)
About Fahrenheit
The Fahrenheit scale is primarily used in the United States. It was developed by Daniel Gabriel Fahrenheit in 1724. On this scale, the freezing point of water is 32°F and the boiling point is 212°F at standard atmospheric pressure, creating a 180-degree separation.
About Celsius
The Celsius scale, also known as centigrade, is a temperature scale used by the International System of Units (SI). It was proposed by Swedish astronomer Anders Celsius in 1742. The Celsius scale sets the freezing point of water at 0°C and the boiling point at 100°C at standard atmospheric pressure.
Practical Examples
Here are some practical examples of Fahrenheit to Celsius conversions:
- Weather forecast: If the forecast says it will be 77°F tomorrow, that's about 25°C – a warm, pleasant day.
- Cooking: If a recipe calls for an oven temperature of 350°F, that's approximately 177°C.
- Fever: A fever of 101°F is equivalent to 38.33°C, which is above normal body temperature.