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Fahrenheit (°F) - Definition and Overview

What is Fahrenheit?

The Fahrenheit scale is a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit. The unit symbol is °F. Fahrenheit scale was defined by two fixed points with a 180 °F separation: the temperature at which pure water freezes was defined as 32 °F and the boiling point of water was defined to be 212 °F, both at sea level and under standard atmospheric pressure.

Summary

  • The Fahrenheit scale is a temperature scale that was proposed by Daniel Gabriel Fahrenheit in 1724
  • It is used primarily in the United States and its territories, as well as some Caribbean nations
  • The scale is defined by two fixed points: the freezing point of water at 32 degrees Fahrenheit and the boiling point of water at 212 degrees Fahrenheit, both at standard atmospheric pressure
  • The Fahrenheit scale is based on a 180-degree separation between these two points, making it less intuitive than the Celsius scale for scientific purposes.

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: June 1, 2026

I am a Storage Technologist with strong experience in enterprise storage systems, Angular development, and web-based tools. I enjoy building practical calculators, converters, and utilities, and I also create original cartoons. I share my tools, articles, and creative work on my personal website, rajeshvu.com.