Convert kelvin to degree Fahrenheit

Convert kelvin (K) to degrees Fahrenheit (°F) instantly.

Value in kelvin

1 K =

-457.87 °F

degrees Fahrenheit

Need the reverse? Convert degree Fahrenheit to kelvin →

Formula

°F = (K − 273.15) × 9/5 + 32

kelvin to degree Fahrenheit conversion table

-40 K-531.67 °F

-10 K-477.67 °F

0 K-459.67 °F

10 K-441.67 °F

20 K-423.67 °F

25 K-414.67 °F

30 K-405.67 °F

37 K-393.07 °F

50 K-369.67 °F

100 K-279.67 °F

About converting kelvin to degrees Fahrenheit

Kelvin to Fahrenheit converts an absolute temperature — from a scientific dataset, a colour-temperature spec, or a cryogenics context — into the everyday US scale. Subtract 273.15 to get Celsius, then scale by 9/5 and add 32.

Method & sources

Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.

Page last updated: October 1, 2026

Frequently asked questions

How many degrees Fahrenheit are in a kelvin?

One kelvin equals -457.87 degrees Fahrenheit. So 10 kelvin is -441.67 degrees Fahrenheit. Use the converter above for any value.

What is the formula to convert kelvin to degrees Fahrenheit?

°F = (K − 273.15) × 9/5 + 32

Is the kelvin-to-degree Fahrenheit conversion exact?

Yes. Temperature scales convert by an exact formula, not an approximation, so the result is precise for any input.

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