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Degrees Fahrenheit to Kelvin

Convert degrees Fahrenheit to kelvin instantly.

Degrees Fahrenheit to Kelvin (°F to K) Converter

1 degree Fahrenheit = 255.93 kelvin

K = (°F + 459.67) × 5/9
From
  • Degrees Celsius°C
  • Degrees Fahrenheit (US)°F
To
  • Degrees Celsius°C
  • Degrees Fahrenheit (US)°F
  • KelvinK

Permanent link to this conversion

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How it’s calculated

K = (°F + 459.67) × 5/9

  • Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.
  • 1 °F = 255.9277778 K · 1 K = -457.87 °F

Quick examples

1 degree Fahrenheit = 255.93 kelvin · 1 K = -457.87 °F

  • 1 degree Fahrenheit = 255.93 kelvin
  • 5 degrees Fahrenheit = 258.15 kelvin
  • 10 degrees Fahrenheit = 260.93 kelvin
  • 25 degrees Fahrenheit = 269.26 kelvin
  • 100 degrees Fahrenheit = 310.93 kelvin

Degrees Fahrenheit to kelvin conversion table

degree Fahrenheit (°F) to kelvin (K)
Degrees Fahrenheit (°F)Kelvin (K)
-40 °F233.15 K
-20 °F244.26 K
-10 °F249.82 K
0 °F255.37 K
5 °F258.15 K
10 °F260.93 K
15 °F263.71 K
20 °F266.48 K
25 °F269.26 K
30 °F272.04 K

About these units

Degree Fahrenheit (°F)

US customary

Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32.

Source: NIST SP 811 / Handbook 44

Kelvin (K)

SI (metric)

The SI base unit of temperature. 0 K is absolute zero, the coldest anything can get.

Source: BIPM SI Brochure (9th ed.)

Frequently asked questions

How do I convert degrees Fahrenheit to kelvin?

Use K = (°F + 459.67) × 5/9. Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.

How many kelvin are in 1 degree Fahrenheit?

1 degree Fahrenheit (°F) equals 255.93 kelvin (K); more precisely 255.9277778.

How many degrees Fahrenheit are in 1 kelvin?

1 kelvin (K) equals -457.87 degrees Fahrenheit (°F).

What is 10 °F in K?

10 degrees Fahrenheit = 260.93 kelvin.

Is the degree Fahrenheit a US or a UK unit?

This converter uses the US customary degree Fahrenheit. Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32. US and UK units with the same name can differ, so check which one your source uses.

What is a degree Fahrenheit?

Fahrenheit puts water’s freezing point at 32 °F and boiling point at 212 °F: °F = °C × 9/5 + 32.

What is a kelvin?

The SI base unit of temperature. 0 K is absolute zero, the coldest anything can get.

Related conversions

Formula: K = (°F + 459.67) × 5/9. Factors last reviewed 2026-10-27.