Kelvin to Fahrenheit

Convert Kelvin to Fahrenheit instantly. Enter a temperature in Kelvin to get the Fahrenheit equivalent, or use the swap button to convert in the opposite direction.

Fahrenheit → Kelvin
°F
K

Kelvin to Fahrenheit formula

Conversion formula
°F = (K − 273.15) × 9⁄5 + 32 Example: (310.15 − 273.15) × 9⁄5 + 32 = 98.6°F

About the Kelvin scale

The kelvin is the SI unit of thermodynamic temperature. Its zero point, 0 K, is absolute zero, the lowest possible temperature in the standard thermodynamic scale. Kelvin does not use a degree symbol: write 300 K, not 300°K.

The kelvin scale has the same size increment as the Celsius scale, but its zero point is shifted by 273.15 degrees. This makes Kelvin especially useful in physics, chemistry, and other scientific calculations.

About the Fahrenheit scale

The Fahrenheit scale sets the freezing point of water at 32°F and its boiling point at 212°F under standard atmospheric pressure. Fahrenheit is used primarily in the United States for everyday temperatures, while Celsius is more common in most countries.

Reference table

KelvinFahrenheit
0K−459.67°F (absolute zero)
273.15K32°F (freezing)
293.15K68°F (room temperature)
310.15K98.6°F (approximate body temperature)
373.15K212°F (boiling)

Common Kelvin to Fahrenheit conversions

Some common conversions include 273.15 K = 32°F, 293.15 K = 68°F, 300 K = 80.33°F, 310.15 K = 98.6°F, and 373.15 K = 212°F.

Frequently asked questions

What is 0 Kelvin in Fahrenheit?

0 K, absolute zero, is exactly −459.67°F. For ordinary temperature conversion, Kelvin values are entered at 0 K or above.

What temperature does the sun's surface convert to in Fahrenheit?

The Sun’s visible surface (photosphere) has an effective temperature of roughly 5,778 K, which converts to about 9,941°F. Astronomical and scientific temperatures are commonly expressed in kelvins.

Can Kelvin values be decimals?

Yes. Kelvin temperatures can be expressed with decimal places when greater precision is needed. For example, water freezes at approximately 273.15 K under standard conditions.