| Comment | Kelvin K |
Celsius °C |
Fahrenheit °F |
Rankine °Ra (°R) |
Delisle °D ¹ |
Newton °N |
Réaumur °R (°Ré, °Re) ¹ |
Rømer °Rø (°R) ¹ |
|---|---|---|---|---|---|---|---|---|
| Absolute zero | 0 | −273.15 | −459.67 | 0 | 559.725 | −90.14 | −218.52 | −135.90 |
| Lowest recorded natural temperature on Earth (Vostok, Antarctica - 21 July 1983) |
184 | −89 | −128 | 331 | 284 | −29 | −71 | −39 |
| Celsius / Fahrenheit's "cross-over" temperature | 233.15 | −40 | –40 | 419.67 | 210 | –13.2 | –32 | –13.5 |
| Fahrenheit's ice/salt mixture | 255.37 | −17.78 | 0 | 459.67 | 176.67 | −5.87 | −14.22 | −1.83 |
| Water freezes (at standard pressure) | 273.15 | 0 | 32 | 491.67 | 150 | 0 | 0 | 7.5 |
| Average surface temperature on Earth | 288 | 15 | 59 | 519 | 128 | 5 | 12 | 15 |
| Average human body temperature ² | 310.0 ±0.7 | 36.8 ±0.7 | 98.2 ±1.3 | 557.9 ±1.3 | 94.8 ±1.1 | 12.1 ±0.2 | 29.4 ±0.6 | 26.8 ±0.4 |
| Highest recorded surface temperature on Earth ('Aziziya, Libya - 13 September 1922) But that reading is queried. |
331 | 58 | 136 | 596 | 63 | 19 | 46 | 38 |
| Water boils (at standard pressure) | 373.15 | 100 | 212 | 672 | 0 | 33 | 80 | 60 |
| Gas flame | ~1773 | ~1500 | ~2732 | |||||
| Titanium melts | 1941 | 1668 | 3034 | 3494 | −2352 | 550 | 1334 | 883 |
| The surface of the Sun | 5800 | 5526 | 9980 | 10440 | −8140 | 1823 | 4421 | 2909 |
1 The temperature scale is in disuse, and of mere historical interest.
2 Normal human body temperature is 36.8 ±0.7 °C, or 98.2 ±1.3 °F. The commonly given value 98.6 °F is simply the exact conversion of the nineteenth-century German standard of 37 °C. Since it does not list an acceptable range, it could therefore be said to have excess (invalid) precision. See Temperature of a Healthy Human (Body Temperature) for more information.
Some numbers in this table have been rounded off.
Read more about this topic: Temperature Measurement
Famous quotes containing the words comparison, temperature and/or scales:
“It is very important not to become hard. The artist must always have one skin too few in comparison to other people, so you feel the slightest wind.”
—Shusha Guppy (b. 1938)
“The bourgeois treasures nothing more highly than the self.... And so at the cost of intensity he achieves his own preservation and security. His harvest is a quiet mind which he prefers to being possessed by God, as he prefers comfort to pleasure, convenience to liberty, and a pleasant temperature to that deathly inner consuming fire.”
—Hermann Hesse (1877–1962)
“In what camera do you taste
Poison, in what darkness set
Glittering scales and point
The tipping tongue?”
—Wallace Stevens (1879–1955)