Degrees Fahrenheit to Degrees Celsius
Convert degrees Fahrenheit to degrees Celsius instantly.
Degrees Fahrenheit to Degrees Celsius (°F to °C) Converter
1 degree Fahrenheit = -17.222 degrees Celsius
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- 1 °F = -17.222 °C
- 5 °F = -15 °C
- 10 °F = -12.222 °C
- 25 °F = -3.8889 °C
- Degrees Celsius°C
- Degrees Fahrenheit (US)°F
- Degrees Celsius°C
- Degrees Fahrenheit (US)°F
How it’s calculated
°C = (°F − 32) × 5/9
- Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.
- 1 °F = -17.22222222 °C · 1 °C = 33.8 °F
Quick examples
1 degree Fahrenheit = -17.222 degrees Celsius · 1 °C = 33.8 °F
- 1 degree Fahrenheit = -17.222 degrees Celsius
- 5 degrees Fahrenheit = -15 degrees Celsius
- 10 degrees Fahrenheit = -12.222 degrees Celsius
- 25 degrees Fahrenheit = -3.8889 degrees Celsius
- 100 degrees Fahrenheit = 37.778 degrees Celsius
Degrees Fahrenheit to degrees Celsius conversion table
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | −40 °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 |
| 37 °F | 2.7778 °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 |
| 180 °F | 82.222 °C |
| 200 °F | 93.333 °C |
About these units
Degree Fahrenheit (°F)
US customary
Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32.
Source: NIST SP 811 / Handbook 44
Degree Celsius (°C)
SI (metric)
Celsius uses the same step size as kelvin, shifted so water freezes at 0 °C: °C = K − 273.15.
Source: BIPM SI Brochure (9th ed.)
Frequently asked questions
How do I convert degrees Fahrenheit to degrees Celsius?
Use °C = (°F − 32) × 5/9. Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.
How many degrees Celsius are in 1 degree Fahrenheit?
1 degree Fahrenheit (°F) equals -17.222 degrees Celsius (°C); more precisely -17.22222222.
How many degrees Fahrenheit are in 1 degree Celsius?
1 degree Celsius (°C) equals 33.8 degrees Fahrenheit (°F).
What is 10 °F in °C?
10 degrees Fahrenheit = -12.222 degrees Celsius.
Is the degree Fahrenheit a US or a UK unit?
This converter uses the US customary degree Fahrenheit. Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32. US and UK units with the same name can differ, so check which one your source uses.
What is a degree Fahrenheit?
Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32.
What is a degree Celsius?
Celsius uses the same step size as kelvin, shifted so water freezes at 0 °C: °C = K − 273.15.
Related conversions
Formula: °C = (°F − 32) × 5/9. Factors last reviewed 2026-10-27.