55 Fahrenheit to Celsius
55 °F ≈ 12.78 °C
55 degrees Fahrenheit is approximately 12.78 degrees Celsius.
How to convert 55 °F to °C
Use the formula °C = (°F − 32) × 5/9:
°C = (55 − 32) × 5/9°C = 23 × 5/9°C = 12.777778
So 55 °F = 12.777778 °C, or about 12.78 °C rounded.
Rounded values and quick estimate
- Rounded to a whole number: 13 °C
- Rounded to one decimal place: 12.8 °C
Quick mental estimate: subtract 30 and halve it. For 55 °F that gives about 12.5 °C — off by 0.2778 °C (2.2%). Use the exact formula when precision matters.
55 Fahrenheit in other units
12.78 °C is cool weather — typical of spring or autumn in temperate climates. Most people would want a light jacket or sweater.
- Celsius
- 12.78 °C
- Degrees Réaumur
- 10.22 °Ré
- Degrees Delisle
- 130.83 °De
- Degrees Newton
- 4.22 °N
- Degrees Rømer
- 14.21 °Rø
- Kelvin
- 285.93 K
- Rankine
- 514.67 °R
55 °F and nearby values
About fahrenheit and celsius
The Fahrenheit scale puts water’s freezing point at 32 °F and boiling point at 212 °F. It is the everyday temperature scale in the United States.
The Celsius scale sets the freezing point of water at 0 °C and its boiling point at 100 °C (at sea level). It is used for everyday temperatures in almost every country.
Related conversions
Frequently asked questions
What is 55 Fahrenheit in Celsius?
55 degrees Fahrenheit is about 12.78 degrees Celsius (55 °F ≈ 12.78 °C).
How do you convert 55 °F to °C?
Apply °C = (°F − 32) × 5/9: °C = (55 − 32) × 5/9, °C = 23 × 5/9, °C = 12.777778.
How many degrees Fahrenheit is 12.78 °C?
12.78 °C is about 55 degrees Fahrenheit.