Fahrenheit to Celsius Converter
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Formula: (°F − 32) × 5/9 = °C
How to convert Fahrenheit to Celsius
To convert Fahrenheit to Celsius, subtract 32 then multiply by 5/9. Formula: °C = (°F − 32) × 0.5556. For example, 98.6°F = (98.6 − 32) × 0.5556 = 37°C.
A quick mental estimate: subtract 32 then divide by 2. So 72°F − 32 = 40 ÷ 2 = 20°C. The actual answer is 22.2°C — close enough for everyday use.
Fahrenheit is used primarily in the United States for weather forecasts, cooking, and body temperature. Celsius is the standard in most other countries and in science. Understanding this conversion is essential for international travel, cooking foreign recipes, and reading weather forecasts.
Fahrenheit to Celsius conversion table
| Fahrenheit (°F) | Celsius (°C) | Description |
|---|---|---|
| −40°F | −40°C | Scales are equal |
| 0°F | −17.78°C | Extremely cold |
| 32°F | 0°C | Freezing point of water |
| 50°F | 10°C | Cool day |
| 68°F | 20°C | Room temperature |
| 77°F | 25°C | Warm day |
| 86°F | 30°C | Hot day |
| 98.6°F | 37°C | Normal body temperature |
| 100.4°F | 38°C | Fever |
| 212°F | 100°C | Boiling point of water |
| 350°F | 176.67°C | Moderate oven |
| 400°F | 204.44°C | Hot oven |