Celsius (°C) to Fahrenheit (°F) Converter
Convert Celsius (°C) to Fahrenheit (°F) instantly. Enter any value and get the result. Includes a conversion table and the exact formula.
| Celsius (°C) | Fahrenheit (°F) |
|---|
How to convert Celsius (°C) to Fahrenheit (°F)
Enter your value
Type the number of celsius (°c) you want to convert into the left box. The result in fahrenheit (°f) appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — Fahrenheit (°F) to Celsius (°C). Your current value carries across so you don't have to re-enter anything.
About Celsius (°C) and Fahrenheit (°F)
Celsius is used in most countries. Fahrenheit is standard in the US. Water freezes at 0°C / 32°F and boils at 100°C / 212°F.
Related conversions
Celsius to Fahrenheit: key temperatures
The formula is °F = (°C × 9/5) + 32. A quick mental estimate is to double the Celsius value and add 30, which is close for everyday temperatures.
| Situation | °C | °F |
|---|---|---|
| Water freezes | 0 | 32 |
| Cool room | 18 | 64 |
| Comfortable room | 21 | 70 |
| Normal body temperature | 37 | 98.6 |
| Hot summer day (UK) | 30 | 86 |
| Water boils (sea level) | 100 | 212 |
| Moderate oven | 180 | 356 |
| Both scales agree | -40 | -40 |
The Fahrenheit scale was set so that 0°F was the freezing point of brine (salt water) and 100°F was approximately human body temperature. Daniel Fahrenheit got body temp slightly wrong — actual normal is closer to 98.6°F.
Frequently asked questions
How do I convert Celsius (°C) to Fahrenheit (°F)?
Use the calculator above to convert Celsius (°C) to Fahrenheit (°F) instantly.
How many Fahrenheit (°F) are in 1 Celsius (°C)?
Use the calculator above to find the exact conversion.
Is the Celsius (°C) to Fahrenheit (°F) converter free?
Yes, the Celsius (°C) to Fahrenheit (°F) converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.