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°C
Water freezes at 0°C
°F
Water freezes at 32°F
K
Absolute zero: 0K
Created by Swedish astronomer Anders Celsius. Used in most countries worldwide for everyday measurements, science and medicine
0°C = water freezing point
Created by German physicist Gabriel Fahrenheit. Used in the USA, Liberia and Cayman Islands for air temperature measurement
32°F = water freezing point
Created by British physicist William Thomson (Lord Kelvin). Used in science as an absolute thermodynamic scale
0K = absolute zero
Normal body temperature is approximately 36.6°C
36.6°C / 98°F / 310K
−89.2°C was recorded in Antarctica at Vostok Station
−89.2°C / −128.6°F / 184K
56.7°C was recorded in Death Valley, USA
56.7°C / 134°F / 330K
The Sun's surface is heated to incredible temperatures
5,500°C / 9,932°F / 5,773K
In outer space, temperature is close to absolute zero
−270°C / −454°F / 3K
Lightning can heat up 5 times hotter than the Sun's surface
30,000°C / 54,032°F / 30,273K
| Description | °C | °F | K |
|---|---|---|---|
| Absolute zero | -273.15 | -459.67 | 0 |
| Water freezing | 0 | 32 | 273.15 |
| Room temperature | 20 | 68 | 293.15 |
| Water boiling | 100 | 212 | 373.15 |