At One Place

4 °F to K

4 degrees Fahrenheit in kelvin
4 °F = 257.5944 K
K = (°F + 459.67) × 5/9

4 degrees Fahrenheit is 257.5944 kelvin. To get there, use K = (°F + 459.67) × 5/9.

Values either side

Degrees Fahrenheit near 4, converted to kelvin.
Degrees Fahrenheit Kelvin
1.5 °F 256.2056
2 °F 256.4833
2.5 °F 256.7611
3 °F 257.0389
4 °F ← 257.5944
5 °F 258.15
6 °F 258.7056
7 °F 259.2611
8 °F 259.8167

How the conversion works

The relationship is K = (°F + 459.67) × 5/9. Both units measure temperature, so the conversion is a fixed formula that never changes. Temperature scales are the one common case where converting is not just multiplication — Celsius and Fahrenheit each put their zero in a different place, so an offset is applied as well as a scale factor.

Common questions

What is 4 °F in kelvin?
4 °F is 257.5944 K.
How do you convert degrees Fahrenheit to kelvin?
Use K = (°F + 459.67) × 5/9.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked