Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit instantly. Accurate temperature converter with a reference table and formula explanation. Free online tool.
Celsius to Fahrenheit Conversion Table
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 100 °C | 212 °F |
How to Use Celsius to Fahrenheit Converter
- Enter the temperature in Celsius that you want to convert.
- The equivalent temperature in Fahrenheit is shown instantly.
- Use the copy button to copy the Fahrenheit value to your clipboard.
- Check the conversion table below for common temperature equivalents.
Celsius to Fahrenheit Conversion Formula
The formula to convert Celsius to Fahrenheit is:
This formula works by first scaling the Celsius value by the ratio between the two scales (180 Fahrenheit degrees span the same range as 100 Celsius degrees, so the ratio is 9/5 or 1.8), then adding 32 to account for the offset between the two zero points.
Quick mental math trick: Double the Celsius value and add 30 for a rough estimate. For example, 20°C: double it (40) and add 30 = 70°F (actual is 68°F). This method is accurate within a few degrees for typical weather temperatures.
The Celsius scale (formerly called centigrade) is used by virtually every country in the world for everyday temperature measurement. The Fahrenheit scale is primarily used in the United States and a few other territories. Converting between these scales is essential for international travel, cooking with foreign recipes, understanding global weather reports, and scientific communication.