Convert Celsius to Fahrenheit
0 °C is 32 °F. To convert degrees Celsius to degrees Fahrenheit, multiply by 9/5 (1.8) and add 32: for example, 20 °C is 68 °F. Ethical Tube's free Celsius to Fahrenheit converter does the math as you type, and the chart below lists common values.
1 °C = 33.8 °F
- 0 °C
- 32 °F
- 100 °C
- 212 °F
- Formula
- °F = °C × 9/5 + 32
- Measures
- Temperature
- Price
- Free
- Works offline
- Yes
Conversion chart
Celsius to Fahrenheit chart
| Degrees Celsius (°C) | Degrees Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 50 °C | 122 °F |
| 100 °C | 212 °F |
How it works
How to convert Celsius to Fahrenheit
Know the formula
°F = °C × 9/5 + 32. In words: multiply by 9/5 (1.8) and add 32.
Work an example
20 °C → 68 °F. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About temperature units
- Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level.
- Kelvin starts at absolute zero, −273.15 °C, and uses the same step size as Celsius. It's written without a degree sign.
- −40 is the same temperature in Celsius and Fahrenheit.
FAQ
Questions, answered
How do you convert Celsius to Fahrenheit?
To convert degrees Celsius to degrees Fahrenheit, multiply by 9/5 (1.8) and add 32. The formula is °F = °C × 9/5 + 32. For example, 20 °C is 68 °F.
What is 20 Celsius in Fahrenheit?
20 degrees Celsius is 68 degrees Fahrenheit.
What is the formula for Celsius to Fahrenheit?
°F = °C × 9/5 + 32. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level.
Is this Celsius to Fahrenheit converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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