Template:Comparison of temperature scales
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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 - July 21, 1983) |
184 | −89 | −128.2 | 331.47 | 283.5 | −29.37 | −71.2 | −39.225 |
| 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 | 518.67 | 127.5 | 4.95 | 12 | 15.375 |
| Average human body temperature ² | 309.95 | 36.8 | 98.24 | 557.91 | 94.8 | 12.144 | 29.44 | 26.82 |
| Highest recorded surface temperature on Earth (Al 'Aziziyah, Libya - September 13, 1922) |
331 | 58 | 136.4 | 596.07 | 63 | 19.14 | 46.4 | 37.95 |
| 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 °C ±0.7 °C, or 98.2 °F ±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. Here's a list of various measurements.
Some numbers in this table have been rounded off.