How to convert degrees Celsius to degrees Fahrenheit
Celsius and Fahrenheit have different zero points and degree sizes, so the conversion needs two steps. To convert, multiply the Celsius temperature by 9/5 (1.8), then add 32:
Mental-math shortcut: Double the Celsius value and add 30 for a quick estimate: 20 °C → 70 °F (exact: 68 °F).
Example
Convert 25 degrees Celsius to degrees Fahrenheit: 25 °C × 1.8 = 45, and 45 + 32 = 77 °F.
Celsius to Fahrenheit conversion chart
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 | -40 |
| -30 | -22 |
| -20 | -4 |
| -10 | 14 |
| -5 | 23 |
| 0 | 32 |
| 5 | 41 |
| 10 | 50 |
| 15 | 59 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 35 | 95 |
| 37 (body temp.) | 98.6 |
| 40 | 104 |
| 50 | 122 |
| 100 | 212 |
| 180 | 356 |
| 200 | 392 |
| 220 | 428 |
What is the Celsius scale?
The Celsius scale (°C) puts the freezing point of water at 0 °C and its boiling point at 100 °C at sea level. It is used for weather and everyday temperatures in almost every country. Normal human body temperature is about 37 °C.
What is the Fahrenheit scale?
The Fahrenheit scale (°F) is used mainly in the United States. Water freezes at 32 °F and boils at 212 °F at sea level, so there are 180 degrees between those two points instead of 100. Normal body temperature is about 98.6 °F.
Converting the other way? Use the Fahrenheit to Celsius converter.
Frequently asked questions
What is 0 °C in °F?
0 °C is 32 °F.
How do I convert Celsius to Fahrenheit?
Use the formula °F = °C × 9/5 + 32. For example, 25 °C is 77 °F.
What is 37 °C in Fahrenheit?
37 °C is 98.6 °F.
How do I convert Fahrenheit to Celsius?
Use °C = (°F − 32) × 5/9, or try our Fahrenheit to Celsius converter.
Is there a temperature where Celsius equals Fahrenheit?
Yes. −40 °C is exactly −40 °F — the only point where the two scales meet.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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