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Need to convert a temperature from Fahrenheit (°F) to Celsius (°C)? The easiest way is to use a simple formula. This formula is the key to understanding temperatures in a different scale, whether you're traveling, cooking, or just curious about the weather.
The most common formula to convert Fahrenheit to Celsius is:
Breaking the formula down into simple steps makes it easy to remember:
This final number is the temperature in degrees Celsius.
Let's see the formula in action. We'll convert a pleasant 77°F to Celsius.
So, 77°F is equal to 25°C.
To convert from degree Fahrenheit (F) to Kelvin (K), use the following formula:
To convert from degree Fahrenheit (F) to degree Rankine (R), use the following formula:
A degree Fahrenheit (°F) is the unit of temperature used in the imperial system of measurement.
The Fahrenheit scale was created in 1724 by the German physicist Daniel Gabriel Fahrenheit. He based his scale on three fixed points:
While most of the world has adopted the Celsius scale for everyday temperature measurement, the Fahrenheit scale remains the official scale in the United States, its territories (like Puerto Rico and Guam), and a few other countries, including the Bahamas, Palau, and the Cayman Islands.
In the United Kingdom, both Fahrenheit and Celsius are used to describe temperature; Fahrenheit remains more familiar to older people and is often heard in casual conversation.
You can easily convert any temperature from Fahrenheit to Celsius using a simple formula. To convert a temperature from Fahrenheit (F) to Celsius (C), subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9.
The Fahrenheit to Celsius formula is: C = (F − 32) × 5/9
For example, to convert a pleasant day of 77 °F to Celsius: C = (77 − 32) × 5/9 = 45 × 5/9 = 25 °C