Celsius to Kelvin converter

Convert celsius (°C) to kelvin (K) — results update instantly as you type.

Celsius to Kelvin

To274.15

1 °C = 274.15 K

How to convert Celsius 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

°C × 274.15 = K

Multiply your celsius value by 274.15 to get kelvin. For the reverse, divide by the same factor.

Celsius to Kelvin conversion table

CelsiusKelvin
1 °C274.15 K
2 °C275.15 K
5 °C278.15 K
10 °C283.15 K
25 °C298.15 K
100 °C373.15 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.