100 Celsius to Kelvin

°C
373.15K

K = 100 + 273.15 = 373.15

100 °C = 373.15 K

100 degrees Celsius equals 373.15 kelvins.

How to convert 100 °C to K

Use the formula K = °C + 273.15:

  1. K = 100 + 273.15
  2. K = 373.15

So 100 °C = 373.15 K.

Rounded values and quick estimate

  • Rounded to a whole number: 373 K
  • Rounded to one decimal place: 373.2 K

This conversion is exact, so there is no need to estimate: just add or subtract 273.15.

100 Celsius in other units

This is the boiling point of water at sea level (standard atmospheric pressure), defined as 212 °F. At higher altitudes water boils at a lower temperature.

100 °C is around the boiling point of water (100 °C / 212 °F at sea level), relevant for boiling, steaming and pressure cooking.

Kelvin
373.15 K
Degrees Réaumur
80 °Ré
Degrees Delisle
0 °De
Degrees Newton
33 °N
Degrees Rømer
60 °Rø
Fahrenheit
212 °F
Rankine
671.67 °R

100 °C and nearby values

CelsiusKelvin
96 °C369.15 K
97 °C370.15 K
98 °C371.15 K
99 °C372.15 K
100 °C373.15 K
101 °C374.15 K
102 °C375.15 K
103 °C376.15 K
104 °C377.15 K

About celsius and kelvin

The Celsius scale sets the freezing point of water at 0 °C and its boiling point at 100 °C (at sea level). It is used for everyday temperatures in almost every country.

The kelvin is the SI unit of temperature. It starts at absolute zero (0 K = −273.15 °C) and uses degrees the same size as Celsius, so it never goes negative.

Related conversions

Frequently asked questions

What is 100 Celsius in Kelvin?

100 degrees Celsius is 373.15 kelvins (100 °C = 373.15 K).

How do you convert 100 °C to K?

Apply K = °C + 273.15: K = 100 + 273.15, K = 373.15.

How many degrees Celsius is 373.15 K?

373.15 K is about 100 degrees Celsius.

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