Fahrenheit to Kelvin converter

Convert fahrenheit (°F) to kelvin (K) — results update instantly as you type.

Fahrenheit to Kelvin

To255.928

1 °F = 255.92777778 K

How to convert Fahrenheit to Kelvin

Temperature is measured on three main scales: Celsius (used worldwide), Fahrenheit (used in the United States), and Kelvin (used in science). Unlike most conversions, temperature uses an offset as well as a multiplier.

Fahrenheit to Celsius: subtract 32, then multiply by 5/9. Celsius to Kelvin: add 273.15. The scales intersect at -40°, where -40°C equals -40°F.

Formula

°F × 255.9277777778 = K

Multiply your fahrenheit value by 255.9277777778 to get kelvin. For the reverse, divide by the same factor.

Fahrenheit to Kelvin conversion table

FahrenheitKelvin
1 °F255.927778 K
2 °F256.483333 K
5 °F258.15 K
10 °F260.927778 K
25 °F269.261111 K
100 °F310.927778 K

Common use cases

  • Weather forecasts between Celsius and Fahrenheit
  • Oven temperatures for international recipes
  • Scientific calculations requiring Kelvin
  • Body temperature interpretation (37°C = 98.6°F)

Frequently asked questions

Double the Celsius value and add 30 for a close estimate. The exact formula is °F = °C × 9/5 + 32.