273.15 Kelvin to Celsius
273.15 K = 0 °C
273.15 kelvins equals 0 degrees Celsius.
How to convert 273.15 K to °C
Use the formula °C = K − 273.15:
°C = 273.15 − 273.15°C = 0
So 273.15 K = 0 °C.
Rounded values and quick estimate
- Rounded to a whole number: 0 °C
- Rounded to one decimal place: 0 °C
This conversion is exact, so there is no need to estimate: just add or subtract 273.15.
273.15 Kelvin in other units
273.15 K is exactly 0 °C, the freezing point of water.
This is the freezing point of pure water at standard atmospheric pressure, defined as 32 °F on the Fahrenheit scale.
0 °C is cold. Outdoors it calls for a warm coat; it is also in the range of a refrigerator or a cool cellar.
- Celsius
- 0 °C
- Degrees Réaumur
- 0 °Ré
- Degrees Delisle
- 150 °De
- Degrees Newton
- 0 °N
- Degrees Rømer
- 7.5 °Rø
- Fahrenheit
- 32 °F
- Rankine
- 491.67 °R
273.15 K and nearby values
| Kelvin | Celsius |
|---|---|
| 273.11 K | -0.04 °C |
| 273.12 K | -0.03 °C |
| 273.13 K | -0.02 °C |
| 273.14 K | -0.01 °C |
| 273.15 K | 0 °C |
| 273.16 K | 0.01 °C |
| 273.17 K | 0.02 °C |
| 273.18 K | 0.03 °C |
| 273.19 K | 0.04 °C |
About kelvin and celsius
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.
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.
Related conversions
Frequently asked questions
What is 273.15 Kelvin in Celsius?
273.15 kelvins is 0 degrees Celsius (273.15 K = 0 °C).
How do you convert 273.15 K to °C?
Apply °C = K − 273.15: °C = 273.15 − 273.15, °C = 0.
How many kelvins is 0 °C?
0 °C is about 273.15 kelvins.
Why is 0 °C equal to 273.15 K?
Kelvin uses Celsius-sized degrees but starts at absolute zero, which is 273.15 degrees below the freezing point of water.