Orders of magnitude (temperature)
List of orders of magnitude">Order of magnitude">orders of magnitude for [temperature]
Detailed list for 100 K to 1000 K
Most ordinary human activity takes place at temperatures of this order of magnitude. Circumstances where water naturally occurs in liquid form are shown in [|light grey].| Kelvin | Degrees Celsius | Degrees Fahrenheit | Condition |
| 100 K | −173.15 °C | −279.67 °F | |
| 165 K | −108 °C | −163 °F | Glass point of supercooled water. |
| 179.9 K | −93.2 °C | −135.8 °F | Coldest luminance temperature recorded on Earth, in Antarctica at 81.8° S, 59.3° E on 2010-08-10 |
| 183.7 K | −89.5 °C | −129.1 °F | Freezing/Melting point of isopropyl alcohol |
| 183.9 K | −89.2 °C | −128.6 °F | Coldest officially recorded air temperature on Earth, at Stántsiya Vostók, Antarctica on 1983-07-21 01:45 UTC |
| 192 K | −81 °C | −114 °F | Debye temperature of ice |
| 194.6 K | −78.5 °C | −109.3 °F | Sublimation point of carbon dioxide |
| 205.5 K | −67.7 °C | −89.9 °F | Coldest officially recorded air temperature in the Northern Hemisphere, at Oymyakon, Oymyakonsky District, Sakha Republic, Russian Soviet Federative Socialist Republic, Union of Soviet Socialist Republics on 1933-02-06 |
| 207.05 K | −66.1 °C | −86.98 °F | Coldest officially recorded air temperature in North America, at North Ice, Greenland on 1954-01-09 |
| 210 K | −63 °C | −80 °F | Mean on Mars |
| 214.9 K | –58.3 °C | –72.9 °F | Coldest annual mean temperature on Earth, at Dome Argus, Antarctica |
| 223.15 K | -50 °C | -58 °F | Mean on Earth during Snowball Earth around 650 million years ago |
| 224.8 K | −48.4 °C | −55.0 °F | Coldest temperature that water can remain a liquid |
| 225 K | −48 °C | −55 °F | Freezing/Melting point of cottonseed oil |
| 233.15 K | −40 °C | −40 °F | Intersecting point of the Celsius and Fahrenheit temperature scales Skin may freeze almost instantly at or below this temperature |
| 234.3 K | −38.83 °C | −37.89 °F | Freezing/melting point of mercury |
| 240.4 K | −32.8 °C | −27.0 °F | Coldest air temperature recorded in South America, at Sarmiento, Argentina on 1907-06-01 |
| 249 K | –24 °C | –11 °F | Freezing/melting point of flax seed oil |
| 249.3 K | –23.9 °C | –11.0 °F | Coldest air temperature recorded in Africa, at Ifrane, Morocco on 1935-02-11 |
| 250 K | –23 °C | –9 °F | Coldest air temperature recorded in Australia, at Charlotte Pass, New South Wales, Australia on 1994-06-29 |
| 255.37 K | –17 °C | 0 °F | Coldest brine-ice solution found by Daniel Gabriel Fahrenheit |
| 255 K | –18 °C | 0 °F | Freezing/Melting point of almond oil |
| 256 K | –17 °C | 1 °F | Freezing/Melting point of sunflower oil |
| 256 K | –17 °C | 2 °F | Freezing/Melting point of safflower oil |
| 257 K | –16 °C | 3 °F | Freezing/Melting point of soybean oil |
| 262 K | −11 °C | 12 °F | Freezing/Melting point of corn oil |
| 263.15 K | –10 °C | 14 °F | Freezing/Melting point of canola oil Freezing/melting point of grape seed oil |
| 265 K | –8 °C | 18 °F | White frost can form below this temperature Freezing/melting point of hemp seed oil |
| 265.8 K | –7.2 °C | 19 °F | Freezing/Melting point of bromine |
| 267 K | –6 °C | 21 °F | Freezing/Melting point of olive oil Freezing/melting point of sesame oil |
| 271.15 K | −2 °C | 28.4 °F | Average freezing/melting point of oceans, the salinity is around 34.7‰. |
| 273.15 K | 0.00 °C | 32.00 °F | Freezing/Melting point of fresh water |
| 273.16 K | 0.01 °C | 32.02 °F | triple point of fresh water |
| 276 K | 3 °C | 37 °F | Freezing/Melting point of peanut oil |
| 277.13 K | 3.98 °C | 39.16 °F | Water is at maximum density |
| 283.2 K | 10 °C | 50 °F | Minimum temperature for most plant growth |
| 286.9 K | 12.7 °C | 54.9 °F | Coldest body temperature of a human that survived accidental hypothermia |
| 288 K | 15 °C | 59 °F | Mean on Earth Hottest air temperature recorded in Antarctica, at Vanda Station on 1974-05-01 |
| 294 K | 21 °C | 70 °F | Room temperature |
| 296 K | 23 °C | 73 °F | Mean on Earth during the Paleocene-Eocene Thermal Maximum about 55.8 million years ago |
| 297 K | 24 °C | 75 °F | Melting/Freezing point of palm kernel oil |
| 298 K | 25 °C | 77 °F | Melting/Freezing point of coconut oil |
| 300 K | 27 °C | 80.6 °F | Estimated melting/freezing point of francium |
| 301 K | 28 °C | 82.4 °F | Minimum temperature for a naked human to be comfortable |
| 302.9 K | 29.8 °C | 85.6 °F | Melting/Freezing point of gallium |
| 303.15 K | 30 °C | 86 °F | Maximum temperature for a naked human to be comfortable The rate of plant growth is typically no greater above this temperature than at this temperature. |
| 304 K | 31 °C | 88 °F | Melting/Freezing point of butter, critical point for carbon dioxide |
| 307 K | 34 °C | 93 °F | Kindling point of white phosphorus |
| 307.6 K | 34.4 °C | 93.9 °F | Hottest annual mean temperature on Earth, at Dallol, Ethiopia |
| 308 K | 35 °C | 95 °F | Hypothermic body temperature for humans Warmest sea measured, at the Red Sea Melting/freezing point of palm oil |
| 310.0 K | 36.8 °C | 98.2 °F | Average body temperature for a human |
| 311.03 K | 37.87 °C | 100.2 °F | Beginnings of a fever for humans |
| 311.8 K | 38.6 °C | 101.5 °F | Average body temperature for a cat |
| 313.15 K | 40 °C | 104 °F | Maximum standard temperature recommended for hot tub users |
| 315 K | 42 °C | 108 °F | Usually fatal human fever |
| 319.3 K | 46.1 °C | 115 °F | World's hottest air temperature recorded while raining, at Needles, California, USA on August 13, 2012 |
| 319.7 K | 46.5 °C | 115.7 °F | Highest human fever survived |
| 322.1 K | 48.9 °C | 120.0 °F | Hottest air temperature recorded in South America, at Rivadavia, Argentina on 1905-12-11 Maximum safe temperature for hot water according to numeric U.S. plumbing codes Water will cause a second-degree burn after 8 minutes and a third-degree burn after 10 minutes |
| 323.9 K | 50.7 °C | 123.3 °F | Hottest air temperature recorded in the Southern Hemisphere, at Oodnadatta, Australia on 1960-02-01 |
| 327.2 K | 54.0 °C | 129.2 °F | Hottest reliably measured air temperatures on Earth, in Death Valley at Furnace Creek, Inyo County, California, United States of America on 2013-06-30, and at Mitribah, Kuwait on 2016-07-21. |
| 333.15 K | 60 °C | 140 °F | Water will cause a second-degree burn in 3 seconds and a third-degree burn in 5 seconds |
| 336 K | 63 °C | 145.4 °F | Milk pasteurization |
| 342 K | 69 °C | 157 °F | Boiling point of water on the summit of Mount Everest |
| 343.15 K | 70 °C | 158 °F | Food is well done Hot springs at which some bacteria thrive |
| 350 K | 77 °C | 170 °F | Poaching of food |
| 351.52 K | 78.37 °C | 173.07 °F | Boiling point of ethanol |
| 353.15 K | 80 °C | 176 °F | Average temperature of a sauna |
| 355 K | 82 °C | 180 °F | Recommended final rinse temperature in industrial grade commercial dishwashers |
| 355.6 K | 82.4 °C | 180.3 °F | Boiling point of isopropyl alcohol |
| 366 K | 93 °C | 200 °F | Simmering of food |
| 367 K | 94 °C | 201 °F | Hottest ground temperature recorded on Earth at Furnace Creek, Death Valley, California, USA on 1972-07-15 |
| 371 K | 98 °C | 209 °F | Freezing/Melting point of sodium |
| 373.13 K | 99.98 °C | 211.97 °F | Boiling point of water at sea level |
| 380 K | 107 °C | 225 °F | Smoke point of raw safflower oil Syrup is concentrated to 75% sugar |
| 388 K | 115 °C | 239 °F | Melting/Freezing point of sulfur |
| 400 K | 127 °C | 260 °F | Concorde nose tip during supersonic flight Coldest known stars in space |
| 433.15 K | 160 °C | 320 °F | Syrup is concentrated to 100% sugar Sucrose caramelizes |
| 450 K | 177 °C | 350 °F | Mean on Mercury Smoke point of butter Deep frying |
| 453.15 K | 180 °C | 356 °F | Popcorn pops |
| 483 K | 210 °C | 410 °F | Autoignition point of diesel fuel |
| 491 K | 218 °C | 425 °F | Kindling point of paper |
| 519 K | 246 °C | 475 °F | Kindling point of automotive gasoline |
| 522 K | 249 °C | 480 °F | Kindling point of jet fuel |
| 525 K | 252 °C | 485 °F | Smoke point of milkfat Kindling point of jet fuel |
| 538 K | 265 °C | 510 °F | Smoke point of refined safflower oil |
| 574.5875 K | 301.4375 °C | 574.5875 °F | Intersecting point of the Fahrenheit and Kelvin temperature scales |
| 600.65 K | 327.5 °C | 621.5 °F | Melting/Freezing point of lead |
| 647 K | 374 °C | 705 °F | Critical point of superheated water |
| 723.15 K | 450 °C | 842 °F | Kindling point of aviation gasoline Freezing/Melting point of tennessine |
| 738 K | 465 °C | 870 °F | Mean on Venus |
| 749 K | 476 °C | 889 °F | Kindling point of magnesium |
| 798 K | 525 °C | 977 °F | Draper Point |
| 809 K | 536 °C | 997 °F | Kindling point of hydrogen |
| 883.15 K | 610 °C | 1130 °F | Boiling point of tennessine |
| 933.47 K | 660.32 °C | 1220.58 °F | Melting/Freezing point of aluminium |
| 1000 K | 726.85 °C | 1340.33 °F |