Celsius to Fahrenheit
Convert °C to °F quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
Celsius to Fahrenheit uses °F = °C × 9/5 + 32.
How to use the Celsius to Fahrenheit
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
Celsius to Fahrenheit uses °F = °C × 9/5 + 32.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common °C to °F conversions
| °C | °F |
|---|---|
| 1 °C | 33.8 °F |
| 2 °C | 35.6 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 50 °C | 122 °F |
Example
For example, entering 1 °C gives approximately 33.8 °F using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.