Celsius to Fahrenheit
Fahrenheit = Celsius × 9/5 + 32. Type any temperature below for an instant conversion.
Enter a temperature to convert.
The formula
°F = °C × 9/5 + 32
Example: 25°C × 9/5 + 32 = 77°F. Quick mental shortcut: double the Celsius and add 30 (25°C → ~80°F; slightly rough but close for weather).
Conversion table
| °C | °F |
|---|---|
| -40°C | -40°F |
| -20°C | -4°F |
| -10°C | 14°F |
| 0°C | 32°F |
| 10°C | 50°F |
| 15°C | 59°F |
| 20°C | 68°F |
| 25°C | 77°F |
| 30°C | 86°F |
| 36.6°C | 97.88°F |
| 37°C | 98.6°F |
| 38°C | 100.4°F |
| 40°C | 104°F |
| 50°C | 122°F |
| 100°C | 212°F |
| 180°C | 356°F |
| 200°C | 392°F |
Reference points worth memorizing
- Water freezes: 0°C = 32°F · Water boils: 100°C = 212°F
- Body temperature: 37°C = 98.6°F · Fever: 38°C = 100.4°F
- Room temperature: 20–22°C = 68–72°F · Hot summer day: 35°C = 95°F
- The scales cross at −40: −40°C = −40°F
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Related: Fahrenheit to Celsius