Convert Fahrenheit to Celsius instantly. Type a value and the result updates as you go — understanding metric forecasts and lab temperatures.
How to convert Fahrenheit to Celsius
Subtract 32 from the Fahrenheit value, then multiply by 5/9. So 98.6 °F − 32 × 5/9 = 37 °C.
Quick °F to °C reference
A few everyday values so you don’t have to reach for the calculator:
| °F | °C |
|---|---|
| 1 °F | -17.22222222 °C |
| 2 °F | -16.66666667 °C |
| 5 °F | -15 °C |
| 10 °F | -12.22222222 °C |
| 25 °F | -3.888888889 °C |
| 50 °F | 10 °C |
| 100 °F | 37.77777778 °C |
| 250 °F | 121.1111111 °C |
| 500 °F | 260 °C |
| 1000 °F | 537.7777778 °C |
Why convert Fahrenheit to Celsius
People reach for this conversion understanding metric forecasts and lab temperatures. Having it computed in the browser means no upload, no wait and a result you can trust to the decimal shown.
Frequently asked questions
How many Celsius are in one Fahrenheit?
Exactly -17.22222222 °C. In other words, 1 °F = -17.22222222 °C.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5/9. So 98.6 °F − 32 × 5/9 = 37 °C.
How do I convert Celsius back to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32. So 37 °C × 9/5 + 32 = 98.6 °F.
Fahrenheit vs Celsius: which is bigger?
Neither is simply ‘bigger’ — they sit at different zero points. Water freezes at 0 °F but at 32 °C, so the same physical temperature reads very differently on the two scales.
Fahrenheit to Celsius reference table
| Temperature | °F | °C |
|---|---|---|
| Human body temperature | 98.6 | 37.00 |
| Room temperature | 68 | 20.00 |
| Freezing point of water | 32 | 0.00 |
| Boiling point of water | 212 | 100.00 |
| Refrigerator setting | 37 | 2.78 |
| Oven baking temperature | 350 | 176.67 |
Rounding matters when reporting weather forecasts or medical temperatures, where one decimal place is standard, but cooking and DIY projects often round to whole numbers.
How to use it
- Enter a Fahrenheit value into the input field.
- Watch the Celsius result appear immediately below.
- Clear the field to reset the calculation.
- Enter a new value to convert another temperature.
Where it comes in handy
A US recipe calls for baking at 375 °F. Converting to Celsius gives 190.56 °C, so you set your European oven to 190 °C or 200 °C on the nearest mark.
Your doctor reports a fever of 101.4 °F. The converted value is 38.56 °C, which matches the fever threshold used in clinical notes in countries using the metric system.
A weather app shows a high of 77 °F for the day. After converting, you see 25 °C, helping you decide whether to pack light clothing for a trip abroad.
Worth knowing
- The formula subtracts 32 before multiplying by 5/9; entering a negative Fahrenheit value still converts correctly.
- Browsers display results to many decimal places, but practical use rarely needs more than two.
- The conversion is linear, so the difference between two temperatures in °F equals the difference in °C only after multiplying by 5/9.