Direct answer
How to Convert Fahrenheit to Celsius (°F to °C)
Use °C = (°F − 32) × 5/9. Quick formula, freezing/boiling examples, and links to free Fahrenheit ↔ Celsius converters.
Question
How do you convert Fahrenheit to Celsius?
Subtract 32 from Fahrenheit, then multiply by 5/9. Formula: °C = (°F − 32) × 5/9.
Formula
°C = (°F − 32) × 5/9
32°F
0°C
68°F
20°C
212°F
100°C
Explanation
Fahrenheit and Celsius use different zero points and degree sizes, so you need an offset and a scale factor.
Common anchors: 32°F = 0°C (water freezing), 212°F = 100°C (water boiling at standard pressure), 98.6°F ≈ 37°C (body temperature).
To go the other way: °F = (°C × 9/5) + 32.