Fahrenheit to Celsius - °F to °C Converter
Instantly convert Fahrenheit (°F) to Celsius (°C). Enter a value below to get the result, or use our reference table and formula for quick calculations.
Fahrenheit to Celsius Formula
To convert °F to °C, use this formula:
°C = (°F - 32) × 5/9
Reverse Conversion
°F = (°C × 9/5) + 32
°F to °C Conversion Table
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| -40 | -40.0 |
| -20 | -28.9 |
| -10 | -23.3 |
| 0 | -17.8 |
| 10 | -12.2 |
| 20 | -6.7 |
| 25 | -3.9 |
| 30 | -1.1 |
| 37 | 2.8 |
| 100 | 37.8 |
Common Use Cases
🌡️ Travel Planning — Convert US weather forecasts from °F to °C when traveling to or from the United States.
🍳 International Cooking — Convert US oven temperatures (°F) to Celsius for European and Asian recipes.
🏥 Medical Reference — Convert Fahrenheit body temperature readings to Celsius for international medical standards.
🔬 Academic Work — Most scientific literature uses Celsius. Convert Fahrenheit data for academic reporting.
Frequently Asked Questions
Use the formula: °C = (°F - 32) × 5/9. For example, 68°F = (68-32) × 5/9 = 20°C.
32°F = 0°C (the freezing point of water).
212°F = 100°C (the boiling point of water).
98.6°F = 37°C (normal body temperature).
Subtract 30 then divide by 2. For example, 70°F → 40÷2 = 20°C (actual: 21.1°C).
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