Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit instantly with this free online converter. It applies the exact °F = °C × 9/5 + 32 formula and shows the result as you type — handy for weather, cooking, and science homework.
menu_bookQuick Reference
- 0 °C = 32 °F = 273.15 K
- 100 °C = 212 °F
- °F = °C × 9/5 + 32
- K = °C + 273.15
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Use the swap button to quickly reverse a conversion. Results update in real time as you type, so there is no need to press a button.
How to Convert Celsius to Fahrenheit
To convert Celsius to Fahrenheit, multiply the temperature by 9/5 and add 32: °F = (°C × 9/5) + 32. For example, 20°C × 9/5 + 32 = 68°F, a mild spring day.
Celsius to Fahrenheit Conversion Table
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 | -40 |
| -20 | -4 |
| -10 | 14 |
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 37 | 98.6 |
| 40 | 104 |
| 100 | 212 |
| 180 | 356 |
| 220 | 428 |
Frequently Asked Questions
How do you convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8) and add 32. For example, 30°C × 1.8 + 32 = 86°F. To go the other way, subtract 32 and multiply by 5/9.
What is 37 degrees Celsius in Fahrenheit?
37°C equals 98.6°F — normal human body temperature. A fever is usually defined as 38°C (100.4°F) or higher.
At what temperature are Celsius and Fahrenheit equal?
At -40 degrees. It is the one point where both scales read the same: -40°C = -40°F.
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