Kelvins to degrees Fahrenheit
To convert kelvins to degrees Fahrenheit, use the formula °F = (K − 273.15) × 9/5 + 32.
300 K = 80.33 °F
How to convert kelvins to degrees Fahrenheit
The degree Fahrenheit is the Fahrenheit scale, °F = °C × 9/5 + 32 — water freezes at 32 °F and boils at 212 °F. The kelvin is the SI base unit of temperature, fixed since 2019 by defining the Boltzmann constant as exactly 1.380649×10⁻²³ J/K — 0 K is absolute zero.
Worked example — 300 K converts to 80.33 °F using °F = (K − 273.15) × 9/5 + 32.
Kelvins to degrees Fahrenheit table
| Kelvins | Degrees Fahrenheit |
|---|---|
| 0 K | -459.67 °F |
| 255.37 K | -0.004 °F |
| 273.15 K | 32 °F |
| 300 K | 80.33 °F |
| 310.15 K | 98.6 °F |
| 373.15 K | 212 °F |
Reverse and related
About kelvins and degrees Fahrenheit
Kelvin (K)
Definition. The SI base unit of temperature, fixed since 2019 by defining the Boltzmann constant as exactly 1.380649×10⁻²³ J/K — 0 K is absolute zero
History and origin
The kelvin is named after William Thomson, Lord Kelvin, who proposed an absolute temperature scale in 1848 starting from absolute zero. Since 2019 it has been defined by fixing the Boltzmann constant, tying temperature directly to energy.
Current use
The kelvin is the scientific temperature unit used in physics and engineering, and also describes the colour temperature of light sources.
Source: BIPM, The International System of Units (SI), 9th ed. (2019)
Degree Fahrenheit (°F)
Definition. The Fahrenheit scale, °F = °C × 9/5 + 32 — water freezes at 32 °F and boils at 212 °F
History and origin
The Fahrenheit scale was devised by the physicist Daniel Gabriel Fahrenheit in 1724, using a brine freezing point and human body temperature to set its reference points. It places the freezing point of water at 32 degrees and the boiling point at 212.
Current use
Fahrenheit is used mainly in the United States and a few nearby territories for weather, cooking and body temperature, while most of the world uses Celsius.
Source: NIST Handbook 44, Appendix C, Conversion Equations for Units of Temperature
Where people use this
Kelvins: science and physics, colour temperature. Degrees Fahrenheit: weather in the US, oven temperatures, body temperature. 273.15 K is 32 °F.
Kelvin differs from Fahrenheit in both step size and starting point: one kelvin is 9/5 of a Fahrenheit degree, and absolute zero sits at −459.67 °F. So the conversion subtracts 273.15, rescales by 9/5, then adds 32.
Every value is carried to full double precision; the display is rounded.
Sources: NIST Handbook 44, Appendix C, Conversion Equations for Units of Temperature; BIPM, The International System of Units (SI), 9th ed. (2019).
Questions people ask
How do you convert Kelvin to Fahrenheit?
Subtract 273.15, multiply by 9/5, then add 32: °F = (K − 273.15) × 9/5 + 32.
What is 300 K in Fahrenheit?
300 K is about 80.3 °F.
What is 273.15 K in Fahrenheit?
273.15 K, the freezing point of water, is 32 °F.