Fahrenheit to Kelvin Converter

Convert Fahrenheit to Kelvin instantly. Free °F to K converter with quick reference table and formula. Used for converting US temperatures to scientific units.

255.37
Kelvin (K)
Input Value
0°F (Fahrenheit)
Kelvin is the SI unit of temperature. Absolute zero (0K) is the lowest possible temperature.

How to Convert Fahrenheit to Kelvin

Simple formula with a worked example

To convert Fahrenheit (°F) to Kelvin (K), use this formula:

K = (°F − 32) × 5/9 + 273.15

Example: Convert 212 °F to K

212 °F = 373.15 K

To convert back, use: °F = (K − 273.15) × 9/5 + 32

Fahrenheit to Kelvin Conversion Table

Quick reference for common Fahrenheit to Kelvin conversions

Fahrenheit (°F)Kelvin (K)
-40 °F233.15 K
0 °F255.37 K
32 °F273.15 K
50 °F283.15 K
72 °F295.37 K
98.6 °F310.15 K
150 °F338.71 K
212 °F373.15 K
350 °F449.82 K
500 °F533.15 K

About Fahrenheit and Kelvin

Understanding these temperature scales

Fahrenheit (°F)

Fahrenheit is commonly used in the United States. Water freezes at 32°F and boils at 212°F.

Kelvin (K)

Kelvin is the SI unit of temperature. Absolute zero (0K) is the lowest possible temperature.

When You Need This Conversion

  • US engineering to SI conversion
  • scientific data interpretation
  • physics calculations
  • international standards

Frequently Asked Questions

Common questions about converting Fahrenheit to Kelvin

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Last updated Mar 21, 2026