| 1 | A | B | C |
| --- | --- | --- | --- |
| 2 | Kelvin - Practical uses |  |  |
| 3 | - | from kelvins | to kelvins |
| 4 | Celsius | [°C] = [K] − 273.15 | [K] = [°C] + 273.15 |
| 5 | Fahrenheit | [°F] = [K] × ​9⁄5 − 459.67 | [K] = ([°F] + 459.67) × ​5⁄9 |
| 6 | Rankine | [°R] = [K] × ​9⁄5 | [K] = [°R] × ​5⁄9 |
| 7 | For temperature intervals rather than specific temperatures, 1 K = 1 °C = ​9⁄5 °F = ​9⁄5 °R Comparisons among various temperature scales | For temperature intervals rather than specific temperatures, 1 K = 1 °C = ​9⁄5 °F = ​9⁄5 °R Comparisons among various temperature scales | For temperature intervals rather than specific temperatures, 1 K = 1 °C = ​9⁄5 °F = ​9⁄5 °R Comparisons among various temperature scales |

Question: What is the Celsius equivalent of absolute zero and how is it calculated?
Answer: The [°C] = [K] − 273.15 ([°F] = [K] × ​9⁄5 − 459.67) definition implies that absolute zero (0 K) is equivalent to −273.15 °C (−459.67 °F).