Converting temperatures from Fahrenheit to Celsius shouldn’t be complicated. Whether you’re checking the weather for an international trip, following a scientific formula, or simply curious about a temperature you saw online, our free Fahrenheit to Celsius tool gives you the answer in an instant. There are no fees, no accounts to create, and no limits on how many times you can use it. We designed this tool to be 100% free because we believe that helpful daily utilities should be easy for everyone to access. Simply type in your Fahrenheit value and see the Celsius result immediately.
Our tool uses the standard scientific conversion formula to ensure your results are perfectly accurate every time. We know that different tasks require different levels of detail, so we included a “Tool Options” box that lets you choose exactly how many decimal places you want to see. You can get a quick, rounded number for a general idea of the weather or a highly precise decimal for a technical project. With the built-in copy button, you can grab your result with one click and get back to your work. It’s fast, reliable, and works perfectly on both mobile phones and desktop computers.
Helpful Tips
Subtract 30 from the Fahrenheit and then divide by 2. This is the easiest way to estimate the temperature in your head without a calculator.
Remember that 32°F is the freezing point of water, which is exactly 0°C. Anything below 32°F means ice can form.
Normal human body temperature is roughly 98.6°F. In Celsius, this is about 37°C.
The scientific way to find the answer is to take the Fahrenheit, subtract 32, and then multiply by 5/9 (or 0.555).
Common Conversions Table
| Fahrenheit (°F) | Celsius (°C) | Quick Note |
| -40°F | -40°C | Scales Intersect |
| 0°F | -17.8°C | Very Cold Day |
| 32°F | 0°C | Freezing Point of Water |
| 50°F | 10°C | Cool / Light Jacket |
| 68°F | 20°C | Perfect Room Temp |
| 77°F | 25°C | Warm Summer Day |
| 86°F | 30°C | Hot / Beach Weather |
| 98.6°F | 37°C | Normal Body Temp |
| 104°F | 40°C | Intense Heatwave |
| 212°F | 100°C | Boiling Point of Water |