Celsius to Fahrenheit converter
Convert degrees Celsius (°C) to degrees Fahrenheit (°F). Formula: °F = °C × 9/5 + 32.
Converter tool
Formula: °F = °C × 9/5 + 32
Quick examples
| Celsius | Fahrenheit |
|---|---|
| -40 | -40 |
| 0 | 32 |
| 20 | 68 |
| 37 | 98.6 |
| 100 | 212 |
How to convert Celsius to Fahrenheit
Formula: °F = °C × 9/5 + 32.
Reverse conversion: °C = (°F − 32) × 5/9
Tip: Use the swap button to reverse the calculation instantly.
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Celsius → Fahrenheit FAQs
What constants are used?
We use exact constants: 273.15 and 459.67 for Kelvin relations; 9/5 and 5/9 for °C/°F.
How do I go the other way?
°C = (°F − 32) × 5/9
Are the results rounded?
Calculations use exact constants; values are displayed with sensible rounding for readability.