How to convert Celsius to Fahrenheit
°F = °C × 9/5 + 32
multiply by 1.8 first, then add 32
Shortcut: Double it and add 30: 25 °C ≈ 80 °F (exactly 77 °F). Close for weather, off by more at oven temperatures.
°C to °F table
| Celsius | Fahrenheit |
|---|---|
| −40°C | −40°F |
| −20°C | −4°F |
| −10°C | 14°F |
| 0°C | 32°F |
| 5°C | 41°F |
| 10°C | 50°F |
| 15°C | 59°F |
| 20°C | 68°F |
| 21°C | 69.8°F |
| 22°C | 71.6°F |
| 25°C | 77°F |
| 30°C | 86°F |
| 35°C | 95°F |
| 37°C | 98.6°F |
| 40°C | 104°F |
| 50°C | 122°F |
| 100°C | 212°F |
| 150°C | 302°F |
| 180°C | 356°F |
| 200°C | 392°F |
| 220°C | 428°F |
| 250°C | 482°F |
Values are calculated with exact factors and rounded for the table; the converter above shows full precision.
Worked examples
25°C to degrees Fahrenheit
25 × 9/5 + 32
77°F
37°C to degrees Fahrenheit
37 × 9/5 + 32
98.6°F
180°C to degrees Fahrenheit
180 × 9/5 + 32
356°F
Questions
What is 25 °C in Fahrenheit?
Exactly 77 °F.
What is 180 °C in Fahrenheit for an oven?
356 °F; recipes usually round it to 350 °F.
When are Celsius and Fahrenheit the same?
At −40: −40 °C is exactly −40 °F.
Related conversions
- Fahrenheit to Celsius (the reverse)
- Temperature converter: every temperature unit, with the full drawing
The history: Fahrenheit, Celsius and Kelvin: the story of three scales.