°F

What is a Fahrenheit?

Fahrenheit is a temperature scale still widely used in the United States.

Fahrenheit is a temperature scale still widely used in the United States.

It became firmly established in Anglo-American practice and remains common in weather, household and some technical contexts.

Measurement system: Imperial and US customary temperature scale. SI equivalent: For temperature difference, 1 °F = 5/9 K.

Fahrenheit facts

Unit name
Fahrenheit
Symbol
°F
Category
Temperature
Measurement system
Imperial and US customary temperature scale
SI equivalent
For temperature difference, 1 °F = 5/9 K
Common uses
US weather data, household temperatures and selected technical references

Definition of the fahrenheit

Fahrenheit is a temperature scale still widely used in the United States.

Measurement system and SI relationship

Imperial and US customary temperature scale

SI equivalent: For temperature difference, 1 °F = 5/9 K

History of the fahrenheit

It became firmly established in Anglo-American practice and remains common in weather, household and some technical contexts.

Where is the fahrenheit used?

US weather data, household temperatures and selected technical references

Fahrenheit conversion tools

Other languages

View the Turkish versionOpen the German version