Temperature formulas
Fahrenheit to Celsius: (°F − 32) × 5/9. Celsius to Fahrenheit: (°C × 9/5) + 32.
Example
Common reference: 32°F = 0°C; 68°F = 20°C; 98.6°F = 37°C; 212°F = 100°C.
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How do I convert Celsius to Fahrenheit without pulling out my phone calculator?
A quick rule of thumb for the weather or cooking: double the Celsius temp and add 30. For instance, 20°C doubled is 40, plus 30 gives you roughly 68°F (the exact math is 68°F). Close enough for a quick backyard barbecue check!
Related Calculators
Common Fahrenheit to Celsius conversions
| Fahrenheit | Celsius |
|---|---|
| 32°F | 0°C |
| 50°F | 10°C |
| 68°F | 20°C |
| 77°F | 25°C |
| 86°F | 30°C |
| 98.6°F | 37°C |
| 212°F | 100°C |
Fahrenheit to Celsius: (°F − 32) × 5/9. Celsius to Fahrenheit: (°C × 9/5) + 32.