Kelvin to Fahrenheit Converter

Relationship Between Kelvin and Fahrenheit

The conversion between Kelvin and Fahrenheit is based on a two-step process: first converting Kelvin to Celsius, then converting Celsius to Fahrenheit.

Step 1: Kelvin to Celsius
°C = K - 273.15

Step 2: Celsius to Fahrenheit
°F = (°C × 9/5) + 32

Combined formula:
°F = (K - 273.15) × 9/5 + 32

Therefore,

1 K = -457.87°F

To convert Kelvin to Fahrenheit, we subtract 273.15 from the Kelvin value, multiply by 9/5, and then add 32.

For example, 273.15 K equals 32°F (freezing point of water), 373.15 K equals 212°F (boiling point of water), and 0 K equals -459.67°F (absolute zero).

Note: Kelvin is an absolute temperature scale with no negative values, where 0 K represents absolute zero, the lowest possible temperature.

About Kelvin

The Kelvin scale is an absolute temperature scale used primarily in scientific and engineering applications, where 0 K represents absolute zero.

Definition:

The Kelvin scale is an absolute temperature scale based on the thermodynamic temperature scale, where 0 K represents absolute zero, the point at which all molecular motion ceases.

Key Reference Points:

• 0 K = Absolute zero (no molecular motion)
• 273.15 K = Freezing point of water (0°C)
• 373.15 K = Boiling point of water (100°C)
• 310.15 K = Normal human body temperature (37°C)
• 293.15 K = Room temperature (20°C)

Scale Characteristics:

• Absolute temperature scale with no negative values
• Same degree size as Celsius (1 K = 1°C)
• Widely used in scientific calculations
• SI base unit for temperature

Historical Background:

• Named after William Thomson, 1st Baron Kelvin
• Developed in the 19th century
• Based on the second law of thermodynamics
• Essential for scientific and engineering calculations

Scientific Applications:

• Physics and chemistry research
• Thermodynamic calculations
• Cryogenics and low-temperature physics
• Weather and climate science
• Astronomy and astrophysics

About Fahrenheit

The Fahrenheit scale is a temperature scale primarily used in the United States and a few other countries for everyday temperature measurements.

Definition:

The Fahrenheit scale is based on the freezing and boiling points of water, with 32°F as the freezing point and 212°F as the boiling point.

Key Reference Points:

• 32°F = Freezing point of water
• 212°F = Boiling point of water
• 98.6°F = Normal human body temperature
• 68°F = Room temperature
• -459.67°F = Absolute zero

Scale Characteristics:

• 180-degree interval between freezing and boiling water
• Positive values above freezing
• Negative values below freezing
• Smaller degree intervals for precise measurements

Historical Background:

• Developed by Daniel Gabriel Fahrenheit in 1724
• Originally based on three fixed points
• Still widely used in the United States
• Common in some engineering applications

Kelvin to Fahrenheit Conversion Table

The conversion of Kelvin to Fahrenheit for certain values is provided below: