Fahrenheit to Celsius Converter
Convert fahrenheit to celsius instantly with our free online temperature converter. Accurate conversions with detailed formulas and conversion tables.
Convert °F to °C
Conversion Result
0 °F = 0.00 °C
Exactly 0.00 °C
Results are estimates. Not professional advice.
The Formula
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9. Formula: °C = (°F - 32) × 5/9
Fahrenheit to Celsius Conversion Table
| Fahrenheit (°F) | Celsius (°C) | Notes |
|---|---|---|
| -40 °F | -40.00 °C | Extremely cold |
| 0 °F | -17.78 °C | Freezing point of water |
| 25 °F | -3.89 °C | Room temperature |
| 100 °F | 37.78 °C | Boiling point of water |
| 200 °F | 93.33 °C | Very hot |
Convert Fahrenheit to Other Units
How to Use This Calculator
- Enter the Temperature: Type the temperature value you want to convert in the input field. For example, if converting 100 °F to °C, enter "100".
- Select Units: The calculator is pre-configured to convert from Fahrenheit (°F) to Celsius (°C). The units are displayed in the "From Unit" and "To Unit" fields.
- View Results: The converted value appears instantly in the result card. You can see both the formatted result and the exact decimal value.
- Copy or Switch: Use the "Copy Result" button to copy the conversion to your clipboard, or click "Quick Switch" to reverse the conversion direction.
How the Conversion Works
Temperature conversions use specific formulas based on the relationship between different temperature scales. Most conversions go through Celsius as an intermediate step for accuracy.
Conversion Formula:
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9. Formula: °C = (°F - 32) × 5/9
Example Calculation:
Let's convert 100 °F to °C:
100 °F = 37.78 °C
Why Convert Fahrenheit to Celsius?
Converting temperature from Fahrenheit to Celsius is essential for various applications including cooking, weather reporting, scientific research, engineering, and international communication. Understanding this conversion helps ensure accuracy in temperature measurements across different unit systems.
Different regions and fields use different temperature scales. Celsius is used in most countries and scientific contexts, Fahrenheit is primarily used in the United States, Kelvin is used in scientific research for absolute temperature measurements, and Rankine is used in some engineering applications.