Fahrenheit to Kelvin Converter

Convert Fahrenheit (°F) to Kelvin (K) instantly and accurately.

Convert Fahrenheit to Kelvin instantly with this free online tool. Type a temperature in Fahrenheit and see the Kelvin value right away, or type Kelvin to convert back. Everything runs in your browser — no sign-up and no waiting.

How to convert Fahrenheit to Kelvin

To convert Fahrenheit to Kelvin, first convert to Celsius by subtracting 32 and dividing by 1.8, then add 273.15. For example, 32 °F = 273.15 K and 212 °F = 373.15 K. This converter does the two-step math for you and updates as you type.

  1. Enter the temperature in Fahrenheit in the first field.
  2. Read the result in Kelvin in the second field.
  3. Type into the Kelvin field to convert in the other direction.

Why use this Fahrenheit to Kelvin converter?

  • 100% free with no ads, sign-up, or limits.
  • Instant, two-way conversion as you type.
  • Combines both conversion steps automatically.
  • Runs entirely in your browser.

Frequently asked questions

What is the formula to convert Fahrenheit to Kelvin?

Kelvin = (Fahrenheit − 32) ÷ 1.8 + 273.15.

What is 32 °F in Kelvin?

32 °F equals 273.15 K, the freezing point of water.

What is absolute zero in Fahrenheit?

Absolute zero is 0 K, which equals about −459.67 °F.