EVERYDAY
Temperature
Absolute temperature scales with exact offsets.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result-17.2222 °C1 °F = -17.2222 °C
EVERYDAY · ENGINEERING · SCIENCE
°F to °C Converter
Convert degree Fahrenheit (°F) to degree Celsius (°C). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through kelvin
Enter a degree Fahrenheit value to calculate degree Celsius with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| degree Celsiusfrom °F | °C | -17.2222 |
| degree Fahrenheitfrom °F | °F | 1 |
| kelvinfrom °F | K | 255.928 |
| degree Rankinefrom °F | °R | 460.67 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
°F to °C Conversion Reference
Degree Fahrenheit (°F) and degree Celsius (°C) are units of temperature. Use this page to convert in either direction.
Conversion Examples
| Degree Fahrenheit (°F) | Degree Celsius (°C) |
|---|---|
| 1 °F | -17.2222 °C |
| 5 °F | -15 °C |
| 10 °F | -12.2222 °C |
| 100 °F | 37.7778 °C |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
°C to °F (degree Celsius to degree Fahrenheit)