Temperature conversion

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Contents

[edit] Kelvin

from Kelvin to Kelvin
Celsius [°C] = [K] − 273.15 [K] = [°C] + 273.15
Fahrenheit [°F] = [K] × 9⁄5 − 459.67 [K] = ([°F] + 459.67) × 5⁄9
Rankine [°R] = [K] × 9⁄5 [K] = [°R] × 5⁄9
Delisle [°De] = (373.15 − [K]) × 3⁄2 [K] = 373.15 − [°De] × 2⁄3
Newton [°N] = ([K] − 273.15) × 33⁄100 [K] = [°N] × 100⁄33 + 273.15
Réaumur [°Ré] = ([K] − 273.15) × 4⁄5 [K] = [°Ré] × 5⁄4 + 273.15
Rømer [°Rø] = ([K] − 273.15) × 21⁄40 + 7.5 [K] = ([°Rø] − 7.5) × 40⁄21 + 273.15

[edit] Celsius (Centigrade)

from Celsius to Celsius
Fahrenheit [°F] = [°C] × 9⁄5 + 32 [°C] = ([°F] − 32) × 5⁄9
Kelvin [K] = [°C] + 273.15 [°C] = [K] − 273.15
Rankine [°R] = ([°C] + 273.15) × 9⁄5 [°C] = ([°R] − 491.67) × 5⁄9
Delisle [°De] = (100 − [°C]) × 3⁄2 [°C] = 100 − [°De] × 2⁄3
Newton [°N] = [°C] × 33⁄100 [°C] = [°N] × 100⁄33
Réaumur [°Ré] = [°C] × 4⁄5 [°C] = [°Ré] × 5⁄4
Rømer [°Rø] = [°C] × 21⁄40 + 7.5 [°C] = ([°Rø] − 7.5) × 40⁄21

[edit] Fahrenheit

from Fahrenheit to Fahrenheit
Celsius [°C] = ([°F] − 32) × 5⁄9 [°F] = [°C] × 9⁄5 + 32
Kelvin [K] = ([°F] + 459.67) × 5⁄9 [°F] = [K] × 9⁄5 − 459.67
Rankine [°R] = [°F] + 459.67 [°F] = [°R] − 459.67
Delisle [°De] = (212 − [°F]) × 5⁄6 [°F] = 212 − [°De] × 6⁄5
Newton [°N] = ([°F] − 32) × 11⁄60 [°F] = [°N] × 60⁄11 + 32
Réaumur [°Ré] = ([°F] − 32) × 4⁄9 [°F] = [°Ré] × 9⁄4 + 32
Rømer [°Rø] = ([°F] − 32) × 7⁄24 + 7.5 [°F] = ([°Rø] − 7.5) × 24⁄7 + 32

[edit] Rankine

from Rankine to Rankine
Celsius [°C] = ([°R] − 491.67) × 5⁄9 [°R] = ([°C] + 273.15) × 9⁄5
Fahrenheit [°F] = [°R] − 459.67 [°R] = [°F] + 459.67
Kelvin [K] = [°R] × 5⁄9 [°R] = [K] × 9⁄5
Delisle [°De] = (671.67 − [°R]) × 5⁄6 [°R] = 671.67 − [°De] × 6⁄5
Newton [°N] = ([°R] − 491.67) × 11⁄60 [°R] = [°N] × 60⁄11 + 491.67
Réaumur [°Ré] = ([°R] − 491.67) × 4⁄9 [°R] = [°Ré] × 9⁄4 + 491.67
Rømer [°Rø] = ([°R] − 491.67) × 7⁄24 + 7.5 [°R] = ([°Rø] − 7.5) × 24⁄7 + 491.67

[edit] Delisle

from Delisle to Delisle
Celsius [°C] = 100 − [°De] × 2⁄3 [°De] = (100 − [°C]) × 3⁄2
Fahrenheit [°F] = 212 − [°De] × 6⁄5 [°De] = (212 − [°F]) × 5⁄6
Kelvin [K] = 373.15 − [°De] × 2⁄3 [°De] = (373.15 − [K]) × 3⁄2
Rankine [°R] = 671.67 − [°De] × 6⁄5 [°De] = (671.67 − [°R]) × 5⁄6
Newton [°N] = 33 − [°De] × 11⁄50 [°De] = (33 − [°N]) × 50⁄11
Réaumur [°Ré] = 80 − [°De] × 8⁄15 [°De] = (80 − [°Ré]) × 15⁄8
Rømer [°Rø] = 60 − [°De] × 7⁄20 [°De] = (60 − [°Rø]) × 20⁄7

[edit] Newton

from Newton to Newton
Celsius [°C] = [°N] × 100⁄33 [°N] = [°C] × 33⁄100
Fahrenheit [°F] = [°N] × 60⁄11 + 32 [°N] = ([°F] − 32) × 11⁄60
Kelvin [K] = [°N] × 100⁄33 + 273.15 [°N] = ([K] − 273.15) × 33⁄100
Rankine [°R] = [°N] × 60⁄11 + 491.67 [°N] = ([°R] − 491.67) × 11⁄60
Delisle [°De] = (33 − [°N]) × 50⁄11 [°N] = 33 − [°De] × 11⁄50
Réaumur [°Ré] = [°N] × 80⁄33 [°N] = [°Ré] × 33⁄80
Rømer [°Rø] = [°N] × 35⁄22 + 7.5 [°N] = ([°Rø] − 7.5) × 22⁄35

[edit] Réaumur

from Réaumur to Réaumur
Celsius [°C] = [°Ré] × 5⁄4 [°Ré] = [°C] × 4⁄5
Fahrenheit [°F] = [°Ré] × 9⁄4 + 32 [°Ré] = ([°F] − 32) × 4⁄9
Kelvin [K] = [°Ré] × 5⁄4 + 273.15 [°Ré] = ([K] − 273.15) × 4⁄5
Rankine [°R] = [°Ré] × 9⁄4 + 491.67 [°Ré] = ([°R] − 491.67) × 4⁄9
Delisle [°De] = (80 − [°Ré]) × 15⁄8 [°Ré] = 80 − [°De] × 8⁄15
Newton [°N] = [°Ré] × 33⁄80 [°Ré] = [°N] × 80⁄33
Rømer [°Rø] = [°Ré] × 21⁄32 + 7.5 [°Ré] = ([°Rø] − 7.5) × 32⁄21

[edit] Rømer

from Rømer to Rømer
Celsius [°C] = ([°Rø] − 7.5) × 40⁄21 [°Rø] = [°C] × 21⁄40 + 7.5
Fahrenheit [°F] = ([°Rø] − 7.5) × 24⁄7 + 32 [°Rø] = ([°F] − 32) × 7⁄24 + 7.5
Kelvin [K] = ([°Rø] − 7.5) × 40⁄21 + 273.15 [°Rø] = ([K] − 273.15) × 21⁄40 + 7.5
Rankine [°R] = ([°Rø] − 7.5) × 24⁄7 + 491.67 [°Rø] = ([°R] − 491.67) × 7⁄24 + 7.5
Delisle [°De] = (60 − [°Rø]) × 20⁄7 [°Rø] = 60 − [°De] × 7⁄20
Newton [°N] = ([°Rø] − 7.5) × 22⁄35 [°Rø] = [°N] × 35⁄22 + 7.5
Réaumur [°Ré] = ([°Rø] − 7.5) × 32⁄21 [°Rø] = [°Ré] × 21⁄32 + 7.5

[edit] Comparison

Celsius Fahrenheit Kelvin Rankine Delisle Newton Réaumur Rømer
300 572 573.15 1031.67 -300 99.0 240 165.00
290 554 563.15 1013.67 -285 95.7 232 159.75
280 536 553.15 995.67 -270 92.4 224 154.50
270 518 543.15 977.67 -255 89.1 216 149.25
260 500 533.15 959.67 -240 85.8 208 144.00
250 482 523.15 941.67 -225 82.5 200 138.75
240 464 513.15 923.67 -210 79.2 192 133.50
230 446 503.15 905.67 -195 75.9 184 128.25
220 428 493.15 887.67 -180 72.6 176 123.00
210 410 483.15 869.67 -165 69.3 168 117.75
200 392 473.15 851.67 -150 66.0 160 112.50
190 374 463.15 833.67 -135 62.7 152 107.25
180 356 453.15 815.67 -120 59.4 144 102.00
170 338 443.15 797.67 -105 56.1 136 96.75
160 320 433.15 779.67 -90 52.8 128 91.50
150 302 423.15 761.67 -75 49.5 120 86.25
140 284 413.15 743.67 -60 46.2 112 81.00
130 266 403.15 725.67 -45 42.9 104 75.75
120 248 393.15 707.67 -30 39.6 96 70.50
110 230 383.15 689.67 -15 36.3 88 65.25
100 212 373.15 671.67 0 33.0 80 60.00
90 194 363.15 653.67 15 29.7 72 54.75
80 176 353.15 635.67 30 26.4 64 49.50
70 158 343.15 617.67 45 23.1 56 44.25
60 140 333.15 599.67 60 19.8 48 39.00
50 122 323.15 581.67 75 16.5 40 33.75
40 104 313.15 563.67 90 13.2 32 28.50
30 86 303.15 545.67 105 9.9 24 23.25
20 68 293.15 527.67 120 6.6 16 18.00
10 50 283.15 509.67 135 3.3 8 12.75
0 32 273.15 491.67 150 0.0 0 7.50
-10 14 263.15 473.67 165 -3.3 -8 2.25
-20 -4 253.15 455.67 180 -6.6 -16 -3.00
-30 -22 243.15 437.67 195 -9.9 -24 -8.25
-40 -40 233.15 419.67 210 -13.2 -32 -13.50
-50 -58 223.15 401.67 225 -16.5 -40 -18.75
-60 -76 213.15 383.67 240 -19.8 -48 -24.00
-70 -94 203.15 365.67 255 -23.1 -56 -29.25
-80 -112 193.15 347.67 270 -26.4 -64 -34.50
-90 -130 183.15 329.67 285 -29.7 -72 -39.75
-100 -148 173.15 311.67 300 -33.0 -80 -45.00
-110 -166 163.15 293.67 315 -36.3 -88 -50.25
-120 -184 153.15 275.67 330 -39.6 -96 -55.50
-130 -202 143.15 257.67 345 -42.9 -104 -60.75
-140 -220 133.15 239.67 360 -46.2 -112 -66.00
-150 -238 123.15 221.67 375 -49.5 -120 -71.25
-160 -256 113.15 203.67 390 -52.8 -128 -76.50
-170 -274 103.15 185.67 405 -56.1 -136 -81.75
-180 -292 93.15 167.67 420 -59.4 -144 -87.00
-190 -310 83.15 149.67 435 -62.7 -152 -92.25
-200 -328 73.15 131.67 450 -66.0 -160 -97.50
-210 -346 63.15 113.67 465 -69.3 -168 -102.75
-220 -364 53.15 95.67 480 -72.6 -176 -108.00
-230 -382 43.15 77.67 495 -75.9 -184 -113.25
-240 -400 33.15 59.67 510 -79.2 -192 -118.50
-250 -418 23.15 41.67 525 -82.5 -200 -123.75
-260 -436 13.15 23.67 540 -85.8 -208 -129.00
-273.15 -459.67 0 0 559.725 -90.1395 -218.52 -135.90375

[edit] Comparison of temperature scales

Comparison of temperature scales
Comment Kelvin Celsius Fahrenheit Rankine Delisle Newton Réaumur Rømer
Absolute zero 0.00 -273.15 -459.67 0.00 559.725 -90.14 -218.52 -135.90375
Lowest recorded surface temperature on Earth
(Vostok, Antarctica - July 21, 1983)		 184.00 -89.00 -128.20 331.47 283.50 -29.37 -71.20 -39.225
Fahrenheit's ice/salt mixture 255.37 -17.78 0.00 459.67 176.67 -5.87 -14.22 -1.83
Ice melts (at standard pressure) 273.15 0.00 32.00 491.67 150.00 0.00 0.00 7.50
Average surface temperature on Earth 288.00 15.00 59.00 518.67 127.50 4.95 12.00 15.375
Average human body temperature ¹ 309.95 36.80 98.24 557.91 94.80 12.144 29.44 26.82
Highest recorded surface temperature on Earth
(Al 'Aziziyah, Libya - September 13, 1922)		 331.00 58.00 136.40 596.07 63.00 19.14 46.40 37.95
Water boils (at standard pressure) 373.1339 100.00 211.97102 671.64102 0.00 33.00 80.00 60.00
Titanium melts 1941.00 1668.00 3034.00 3494.00 -2352.00 550.00 1334.00 883.00
The surface of the Sun 5800.00 5526.00 9980.00 10440.00 -8140.00 1823.00 4421.00 2909.00

¹ 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.

A graphical representation of some of the above data

[edit] See also

[edit] External Links

v • d • e
Temperature scales
Conversion formulas
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