What is absolute zero in Celsius?
Absolute zero is 0 K = -273.15 °C exactly (defined). In Fahrenheit it is -459.67 °F.
Open the interactive PhysRef tool →Key facts
| In Celsius | -273.15 °C |
|---|---|
| In Kelvin | 0 K |
| In Fahrenheit | -459.67 °F |
| Exactness | Exact by definition |
| Source | BIPM SI Brochure |
Frequently asked questions
What is absolute zero in Celsius?
Absolute zero is exactly -273.15 °C, the lowest possible temperature, equal to 0 kelvin.
What is absolute zero in Fahrenheit?
It is -459.67 °F.
Can absolute zero be reached?
No. The third law of thermodynamics says it is impossible to reach 0 K in a finite number of steps.
Related pages
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