Template:Comparison of temperature scales

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Revision as of 11:59, 14 February 2009 by imported>A. di M. (→‎Comparison of temperature scales: rm false precision)
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Comparison of temperature scales

Comparison of temperature scales
Comment Kelvin
K
Celsius
°C
Fahrenheit
°F
Rankine
°Ra (°R)
Delisle
°D ¹
Newton
°N ¹
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 . . . .
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
(Al 'Aziziyah, Libya - 13 September 1922)
331 58 136 596 63 19 46 38
Water boils (at standard pressure) 373.1339 99.9839 211.97102 671.64102 0 33 80 60
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.

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