Fahrenheit (°F) to Kelvin (K) - Unit Converter

Fahrenheit to Kelvin Conversion (°F to K)

Converting temperatures from Fahrenheit (°F) to Kelvin (K) is essential for scientific calculations and understanding thermal dynamics. The Fahrenheit scale, commonly used in the United States, differs significantly from the Kelvin scale, which is the standard unit of temperature in the International System of Units (SI). This article explains how to accurately convert between these two temperature scales.

Conversion Formula

The formula to convert Fahrenheit to Kelvin is:

K = (°F − 32) × 5⁄9 + 273.15

Where:

• °F is the temperature in Fahrenheit.
• K is the temperature in Kelvin.

Step-by-Step Example

Let's convert 77°F to Kelvin:

1. Subtract 32 from the Fahrenheit temperature:
   • 77°F − 32 = 45
2. Multiply the result by 5⁄9:
   • 45 × 5⁄9 ≈ 25
3. Add 273.15 to the result:
   • 25 + 273.15 = 298.15 K

Therefore, 77°F is equal to 298.15 K.

Why Convert to Kelvin?

The Kelvin scale is pivotal in scientific research because it starts at absolute zero—the point where particles have minimal thermal motion. Using Kelvin allows scientists to perform calculations involving thermodynamic temperatures without negative numbers, simplifying equations and enhancing clarity.

Quick Reference Table

Understanding how to convert between °F and K is crucial for global collaboration in science and engineering, ensuring that temperature measurements are consistent and accurate across different systems.