Degree Fahrenheit to Degree Celsius Converter
Type a value — the answer appears instantly. 1 °F = -17.222 °C.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
-17.222 degrees Celsius
= 255.93 K= 460.67 °R
equals -17.222 degrees CelsiusFormula: °C = (°F − 32) × 5/9
Degree Fahrenheit to Degree Celsius formula
°C = (°F − 32) × 5/9
Convert 5 degrees Fahrenheit to degrees Celsius
- Start with 5 °F.
- Apply the formula °C = (°F − 32) × 5/9.
- So 5 °F = -15 °C.
Degree Fahrenheit to Degree Celsius conversion table
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| -30 °F | -34.444 °C |
| -20 °F | -28.889 °C |
| -10 °F | -23.333 °C |
| 0 °F | -17.778 °C |
| 5 °F | -15 °C |
| 10 °F | -12.222 °C |
| 15 °F | -9.4444 °C |
| 20 °F | -6.6667 °C |
| 25 °F | -3.8889 °C |
| 30 °F | -1.1111 °C |
| 35 °F | 1.6667 °C |
| 36.6 °F | 2.5556 °C |
| 37 °F | 2.7778 °C |
| 38 °F | 3.3333 °C |
| 39 °F | 3.8889 °C |
| 40 °F | 4.4444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.556 °C |
| 80 °F | 26.667 °C |
| 100 °F | 37.778 °C |
| 150 °F | 65.556 °C |
| 200 °F | 93.333 °C |
Unit definitions
What is a degree Fahrenheit?
The degree Fahrenheit is the customary temperature unit in the United States, with water freezing at 32 °F and boiling at 212 °F. Each Fahrenheit degree is 5/9 of a kelvin, so the scale is finer than Celsius. Normal human body temperature is about 98.6 °F.
What is a degree Celsius?
The degree Celsius is the everyday metric temperature unit, defined so that water freezes at 0 °C and boils at 100 °C at standard pressure. It shares its degree size with the kelvin and is offset by exactly 273.15. It is the standard scale in almost every country except the United States.
Frequently asked questions
What is the formula to convert degrees Fahrenheit to degrees Celsius?
°C = (°F − 32) × 5/9. For example, 20 °F equals -6.6667 °C.
What is 0 °F in degrees Celsius?
0 °F equals -17.778 °C.
Is this degree Fahrenheit to degree Celsius converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.