Easily switch from Kelvin to Fahrenheit with our accurate conversion tool. User-friendly and quick, it's perfect for professionals, academics, and everyday use.
Kelvin to Fahrenheit conversion: Subtract 273.15 from the value in Kelvin, multiply by 9/5, and add 32.
Kelvin (K) is the SI base unit for measuring temperature, used primarily in scientific contexts. It is an absolute temperature scale, starting at absolute zero, the point at which molecular motion ceases. Unlike other temperature scales, Kelvin does not use the degree symbol (°). The scale is directly tied to Celsius, where 0°C equals 273.15 K. The Kelvin scale was established in the mid-19th century by physicist William Thomson, known as Lord Kelvin. He devised the scale to represent an absolute thermodynamic temperature measurement. Kelvin’s work was instrumental in advancing the fields of thermodynamics and physics, with absolute zero (0 K) set as the theoretical point where entropy reaches its minimum. Kelvin is primarily used in scientific research and industrial applications. It is essential for calculations in physics, chemistry, and engineering, particularly those involving thermodynamic properties. Kelvin is also widely used in astronomy and cryogenics. Fahrenheit (°F) is a temperature scale primarily used in the United States and its territories. It is part of the Imperial system of measurement. On the Fahrenheit scale, the freezing point of water is 32°F, and the boiling point is 212°F under standard atmospheric pressure. The scale’s intervals are based on a division of 180 units between these two reference points. The Fahrenheit scale was developed by Daniel Gabriel Fahrenheit in 1724. It was initially defined using three fixed points: the freezing point of a brine solution (0°F), the freezing point of water (32°F), and the approximate average human body temperature (96°F, later revised to 98.6°F). The scale gained prominence in English-speaking countries before being largely replaced by Celsius in most regions. Fahrenheit remains the primary temperature scale in the United States for weather, cooking, and everyday applications. While Kelvin and Celsius are favored in scientific disciplines, Fahrenheit retains cultural and practical significance in regions where it is standard. To convert Kelvin (K) to Fahrenheit (°F), use the following formula: [ \text{°F} = \frac{9}{5} × (K - 273.15) + 32 ] Start with the formula: [ \text{°F} = \frac{9}{5} × (K - 273.15) + 32 ] Subtract 273.15 from the Kelvin value: [ 300 - 273.15 = 26.85 ] Multiply the result by 9/5: [ \frac{9}{5} × 26.85 = 48.33 ] Add 32 to convert to Fahrenheit: [ 48.33 + 32 = 80.33 ] Result: 300 K equals 80.33°F. Kelvin: 273.15 K Conversion: [ \text{°F} = \frac{9}{5} × (273.15 - 273.15) + 32 ] [ \text{°F} = 32 ] Result: 273.15 K equals 32°F, the freezing point of water. Kelvin: 373.15 K Conversion: [ \text{°F} = \frac{9}{5} × (373.15 - 273.15) + 32 ] [ \text{°F} = \frac{9}{5} × 100 + 32 = 212 ] Result: 373.15 K equals 212°F, the boiling point of water.Kelvin
Definition
History/Origin
Current Use
Fahrenheit
Definition
History/Origin
Current Use
Conversion Details
Conversion Formula and Factor
Quick Reference Conversion Table
Step-by-Step Conversion Instructions
Example: Convert 300 K to Fahrenheit
Practical Examples
Example 1: Freezing Point of Water
Example 2: Boiling Point of Water