What is 1 degree Celsius in Fahrenheit?

The temperature 1 degree Celsius is 33.8 degrees Fahrenheit.
The conversion formula is °F = (°C * 9 / 5) + 32°

Degree Intervals in Celsius compared to Fahrenheit : 1 "degree" Celsius = 1.8 "degrees" Fahrenheit

A "degree" on the Celsius scale is 1.8 times as large as a "degree" on the Fahrenheit scale. A temperature difference on the Fahrenheit scale will be 1.8 times as large a value as the same temperature difference on the Celsius scale. Celsius uses larger intervals for each degree.
Example : The freezing point of water is 0 °C and 32 °F. When the temperature increases to 10 °C, the equivalent Fahrenheit change is 18 degrees, to 50 °F.

(see related questions)
33.8 F

1 degree Celsius = 33.8 degrees Fahrenheit