Fahrenheit to Celsius Converter
Convert temperatures between Fahrenheit and Celsius instantly. Essential for understanding weather forecasts, cooking international recipes, scientific measurements, and travel. Works both directions—enter a temperature in either scale and instantly see the conversion.
Fahrenheit to Celsius Converter
How the Calculation Works
Formula: °C = (°F - 32) × 5/9
Reverse Formula: °F = (°C × 9/5) + 32
The scales differ in their zero points: water freezes at 32°F (0°C) and boils at 212°F (100°C).
Worked Example
Examples:
- 32°F = 0°C (freezing point)
- 68°F ≈ 20°C (room temperature)
- 98.6°F ≈ 37°C (body temperature)
- 212°F = 100°C (boiling point)
How to Use This Calculator
Which is Used Where: Fahrenheit is used primarily in the USA. Celsius is used in most other countries. Scientists worldwide use Celsius. Knowing both is useful for travel and cooking international recipes.
Frequently Asked Questions
How do I convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5/9. Example: (68 - 32) × 5/9 = 20°C.
Why are the scales different?
History. Celsius is based on water's freezing (0°) and boiling (100°) points, making it intuitive. Fahrenheit used different reference points.
What temperature is comfortable?
Most people find 68-72°F (20-22°C) comfortable indoors. Your preference varies by climate and personal preference.