Fahrenheit to Celsius
Convert Fahrenheit to Celsius in seconds with our straightforward tool. Accurate results with a user-friendly interface make temperature conversions easy for everyone—perfect for travel or academic purposes!
Fahrenheit to Celsius conversion: Subtract 32 from the value in Fahrenheit and multiply by 5/9.
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Fahrenheit
Definition
Fahrenheit (°F) is a temperature scale commonly used in the United States and its territories. It is part of the Imperial system of measurement. On this scale, water freezes at 32°F and boils at 212°F under standard atmospheric pressure. The Fahrenheit scale is denoted by the symbol °F.
History/Origin
The Fahrenheit scale was developed in 1724 by Daniel Gabriel Fahrenheit, a physicist and inventor. He based the scale on three fixed points: the freezing point of a brine solution (0°F), the freezing point of pure water (32°F), and the approximate human body temperature (initially 96°F, later corrected to 98.6°F). The scale became widely used in English-speaking countries before the adoption of the Celsius scale elsewhere.
Current Use
Fahrenheit is still the primary temperature scale used in the United States for everyday activities, such as weather forecasts, cooking, and industrial applications. While the Celsius and Kelvin scales dominate in scientific contexts, Fahrenheit remains a practical choice in regions where it is culturally entrenched.
Celsius
Definition
Celsius (°C) is a temperature scale based on the metric system and is part of the International System of Units (SI). On the Celsius scale, water freezes at 0°C and boils at 100°C under standard atmospheric pressure. The Celsius scale is widely used worldwide and is represented by the symbol °C.
History/Origin
The Celsius scale was introduced in 1742 by Anders Celsius, a Swedish astronomer. Originally, the scale was reversed, with 0°C representing the boiling point and 100°C the freezing point of water. It was later standardized to its current format. The Celsius scale is integral to the metric system, making it the preferred choice for most countries and scientific disciplines.
Current Use
Celsius is the standard temperature scale used in most countries and is essential in scientific, medical, and engineering contexts. It is used globally for weather forecasts, cooking instructions, and academic purposes, thanks to its logical alignment with the metric system.
Conversion Details
Conversion Formula and Factor
To convert Fahrenheit (°F) to Celsius (°C), use the following formula:
[ \text{°C} = \frac{5}{9} × (\text{°F} - 32) ]
Quick Reference Conversion Table
Step-by-Step Conversion Instructions
Example: Convert 100°F to Celsius
Start with the formula: [ \text{°C} = \frac{5}{9} × (\text{°F} - 32) ]
Subtract 32 from the Fahrenheit value: [ 100 - 32 = 68 ]
Multiply the result by 5/9: [ \frac{5}{9} × 68 = 37.78 ]
Result: 100°F equals 37.78°C.
Practical Examples
Example 1: Freezing Point of Water
Fahrenheit: 32°F
Conversion: [ \text{°C} = \frac{5}{9} × (32 - 32) = 0°C ]
Result: 32°F equals 0°C.
Example 2: Boiling Point of Water
Fahrenheit: 212°F
Conversion: [ \text{°C} = \frac{5}{9} × (212 - 32) ] [ \text{°C} = \frac{5}{9} × 180 = 100°C ]
Result: 212°F equals 100°C.
Common Conversions
Latest Conversions
Frequently Asked Questions
100 degrees Fahrenheit is approximately 37.78 degrees Celsius. Use the formula C = (F - 32) × 5/9 to calculate.
