Fahrenheit To Celsius Conversion

1 °F = -17.22222222222222 °C

Want to convert from Celsius to Fahrenheit instead?

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How to convert Fahrenheit to Celsius (°F to °C)

The formula for converting Fahrenheit to Celsius is: °C = 5⁄9 × (°F - 32). To calculate the Fahrenheit value in Celsius first substitute the Fahrenheit value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 Fahrenheit in Celsius we follow these steps:

°C = 5⁄9 × (°F - 32)

°C = 5⁄9 × (1 - 32)

°C = -17.22222222222222

In other words, 1 Fahrenheit is equal to -17.22222222222222 Celsius.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 9 Fahrenheit to Celsius is:

Understand the conversion formula: °C = 5⁄9 × (°F - 32)
Substitute the required value. In this case we substitute 9 for °F so the formula becomes: °C = 5⁄9 × (9 - 32)
Calculate the result using the provided values. In our example the result is: 5⁄9 × (9 - 32) = -12.7777777777777777777777777778 °C

In summary, 9 Fahrenheit is equal to -12.7777777777777777777777777778 Celsius.

Converting Celsius to Fahrenheit

In order to convert the other way around i.e. Celsius to Fahrenheit, you would use the following formula: °F = (9⁄5 × °C) + 32. To convert Celsius to Fahrenheit first substitute the Celsius value into the above formula, and then execute the calculation. If we wanted to calculate 1 Celsius in Fahrenheit we follow these steps:

°F = (9⁄5 × °C) + 32

°F = (9⁄5 × 1) + 32

°F = 33.8

Or in other words, 1 Celsius is equal to 33.8 Fahrenheit.

Conversion Unit Definitions

What is a Fahrenheit?

Fahrenheit is a unit of temperature measurement primarily used in the United States and a few other countries. It is named after the German physicist Daniel Gabriel Fahrenheit, who introduced the Fahrenheit temperature scale in the early 18th century. The Fahrenheit scale is widely used in everyday contexts, such as weather reports, household thermometers, and discussions of temperature in the United States.

Here are some more details about Fahrenheit:

Temperature Scale: The Fahrenheit scale divides the temperature range between the freezing and boiling points of water into 180 equal divisions or degrees. On this scale, the freezing point of water is defined as 32 degrees Fahrenheit (°F), and the boiling point of water is defined as 212 degrees Fahrenheit (°F) at standard atmospheric pressure.
Origin: The Fahrenheit scale was originally based on three reference points: the freezing point of a brine solution, the average human body temperature, and the body temperature of horses. However, over time, these reference points have been refined and standardized to the freezing and boiling points of water.
Metric System: Fahrenheit is not part of the metric system but is still used in certain countries. It is primarily used in the United States, along with a few other nations that have historical ties to the United States or limited cultural influences from it.
Conversion: Fahrenheit can be converted to other temperature scales. One common conversion is to Celsius. The formula to convert Fahrenheit to Celsius is: Celsius = (Fahrenheit - 32) x 5/9. Fahrenheit can also be converted to the Kelvin scale by first converting to Celsius and then adding 273.15.
Symbol: The symbol for degrees Fahrenheit is "°F". For example, a temperature measurement of 75 degrees Fahrenheit would be written as 75 °F.
Common Uses: Fahrenheit is commonly used in everyday contexts in countries that primarily use the Fahrenheit scale. It is used in weather forecasts, discussions of outdoor temperatures, oven and cooking temperatures, and temperature readings on household thermometers.
International Usage: The Fahrenheit scale is not widely used internationally, as the Celsius scale is the standard for temperature measurement in most countries around the world. However, it is still relevant and used in the United States and a few other nations.

What is a Celsius?

Celsius is a unit of temperature measurement in the metric system. It is named after the Swedish astronomer Anders Celsius, who proposed the Celsius temperature scale in 1742. The Celsius scale is widely used around the world, particularly in scientific, industrial, and everyday applications.

Here are some more details about Celsius:

Temperature Scale: The Celsius scale is based on dividing the temperature range between the freezing and boiling points of water into 100 equal divisions or degrees. On this scale, the freezing point of water is defined as 0 degrees Celsius (°C), and the boiling point of water is defined as 100 degrees Celsius (°C) at standard atmospheric pressure.
Metric System: Celsius is part of the metric system, which is a decimal-based system of measurement used internationally. The metric system provides a coherent and standardized system for measuring various quantities, including temperature.
Conversion: Celsius can be converted to other temperature scales. One of the most common conversions is to the Fahrenheit scale. The formula to convert Celsius to Fahrenheit is: Fahrenheit = (Celsius x 9/5) + 32. Similarly, Celsius can be converted to the Kelvin scale by adding 273.15 to the Celsius measurement.
Common Uses: Celsius is commonly used to measure temperature in scientific, meteorological, and everyday contexts. It is used in weather forecasts, climate studies, laboratory experiments, household thermometers, and many other applications.
Symbol: The symbol for degrees Celsius is "°C". For example, a temperature measurement of 25 degrees Celsius would be written as 25 °C.
Temperature Range: The Celsius scale covers a wide range of temperatures, from extreme cold to extreme heat. The lowest temperature on the Celsius scale is -273.15 degrees Celsius, which is known as absolute zero. This temperature represents the lowest possible temperature at which molecular motion ceases.
International Usage: The Celsius scale is widely used internationally as a standard unit of temperature measurement, especially in countries that have adopted the metric system. Its usage promotes consistency, compatibility, and ease of communication across different regions and scientific fields.