Comparison_of_temperature_scales

Conversion of scales of temperature

Comparison of various temperature scales

This is a collection of temperature conversion formulas and comparisons among eight different temperature scales, several of which have long been obsolete.

Temperatures on scales that either do not share a numeric zero or are nonlinearly related cannot correctly be mathematically equated (related using the symbol =), and thus temperatures on different scales are more correctly described as corresponding (related using the symbol ≘).

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This article uses material from the Wikipedia article Comparison_of_temperature_scales, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.

[VS-1] [1]
The Coldest Inhabited Places on Earth; researchers of the Vostok Station recorded the coldest known temperature on Earth on July 21st 1983: −89.2 °C (−128.6 °F).

[ASU-2] [2]
"World: Highest Temperature". Arizona State University, School of Geographical Sciences. November 12, 2007. Archived from the original on January 4, 2013. an Italian weather station in al 'Aziziyah (Libya) measured a temperature of 58 °C (136.4 °F) on September 13th 1922. "Although this record has gained general acceptance as the world's highest temperature recorded under standard conditions, the validity of the extreme has been questioned."

[3] [3]
Wong, Lena (1997). Elert, Glenn (ed.). "Temperature of a healthy human (body temperature)". The Physics Factbook. Retrieved 2018-06-07.

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	from Celsius	to Celsius
Kelvin	x °C ≘ (x + 273.15) K	x K ≘ (x − 273.15) °C
Fahrenheit	x °C ≘ (x × 9/5 + 32) °F	x °F ≘ (x − 32) × 5/9 °C
Rankine	x °C ≘ (x + 273.15) × 9/5 °R	x °R ≘ (x − 491.67) × 5/9 °C

	from Kelvin	to Kelvin
Celsius	x K ≘ (x − 273.15) °C	x °C ≘ (x + 273.15) K
Fahrenheit	x K ≘ (x × 9/5 − 459.67) °F	x °F ≘ (x + 459.67) × 5/9 K
Rankine	x K ≘ x × 9/5 °R	x °R ≘ x × 5/9 K

	from Fahrenheit	to Fahrenheit
Celsius	x °F ≘ (x − 32) × 5/9 °C	x °C ≘ (x × 9/5 + 32) °F
Kelvin	x °F ≘ (x + 459.67) × 5/9 K	x K ≘ (x × 9/5 − 459.67) °F
Rankine	x °F ≘ (x + 459.67) °R	x °R ≘ (x − 459.67) °F

	from Rankine	to Rankine
Celsius	x °R ≘ (x − 491.67) × 5/9 °C	x °C ≘ (x + 273.15) × 9/5 °R
Kelvin	x °R ≘ x × 5/9 K	x K ≘ x × 9/5 °R
Fahrenheit	x °R ≘ (x − 459.67) °F	x °F ≘ (x + 459.67) °R

	from Delisle	to Delisle
Celsius	x °De ≘ (100 − x × 2/3) °C	x °C ≘ (100 − x) × 3/2 °De
Kelvin	x °De ≘ (373.15 − x × 2/3) K	x K ≘ (373.15 − x) × 3/2 °De
Fahrenheit	x °De ≘ (212 − x × 6/5) °F	x °F ≘ (212 − x) × 5/6 °De
Rankine	x °De ≘ (671.67 − x × 6/5) °R	x °R ≘ (671.67 − x) × 5/6 °De

Comparison_of_temperature_scales

Conversion of scales of temperature

Celsius scale

Kelvin scale

Fahrenheit scale

Rankine scale

Delisle scale

Newton scale

Réaumur scale

Rømer scale

Comparison values chart

Comparison of temperature scales

Graphical representation

Conversion table between the different temperature units

Converting units of temperature differences

See also

Notes and references

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	from Newton	to Newton
Celsius	x °N ≘ x × 100/33 °C	x °C ≘ x × 33/100 °N
Kelvin	x °N ≘ (x × 100/33 + 273.15) K	x K ≘ (x − 273.15) × 33/100 °N
Fahrenheit	x °N ≘ (x × 60/11 + 32) °F	x °F ≘ (x − 32) × 11/60 °N
Rankine	x °N ≘ (60/11 x + 491.67) °R	x °R ≘ (x − 491.67) × 11/60 °N

	from Réaumur	to Réaumur
Celsius	x °Ré ≘ x × 5/4 °C	x °C ≘ x × 4/5 °Ré
Kelvin	x °Ré ≘ (x × 5/4 + 273.15) K	x K ≘ (x − 273.15) × 4/5 °Ré
Fahrenheit	x °Ré ≘ (x × 9/4 + 32) °F	x °F ≘ (x − 32) × 4/9 °Ré
Rankine	x °Ré ≘ (x × 9/4 + 491.67) °R	x °R ≘ (x − 491.67) × 4/9 °Ré

	from Rømer	to Rømer
Celsius	x °Rø ≘ (x − 7.5) × 40/21 °C	x °C ≘ (x × 21/40 + 7.5) °Rø
Kelvin	x °Rø ≘ ((x − 7.5) × 40/21 + 273.15) K	x K ≘ ((x − 273.15) × 21/40 + 7.5) °Rø
Fahrenheit	x °Rø ≘ ((x − 7.5) × 24/7 + 32) °F	x °F ≘ ((x − 32) × 7/24 + 7.5) °Rø
Rankine	x °Rø ≘ ((x − 7.5) × 24/7 + 491.67) °R	x °R ≘ ((x − 491.67) × 7/24 + 7.5) °Rø

Celsius	Fahrenheit	Kelvin	Rankine	Delisle	Newton	Réaumur	Rømer
500.00	932.00	773.15	1391.67	−600.00	165.00	400.00	270.00
490.00	914.00	763.15	1373.67	−585.00	161.70	392.00	264.75
480.00	896.00	753.15	1355.67	−570.00	158.40	384.00	259.50
470.00	878.00	743.15	1337.67	−555.00	155.10	376.00	254.25
460.00	860.00	733.15	1319.67	−540.00	151.80	368.00	249.00
450.00	842.00	723.15	1301.67	−525.00	148.50	360.00	243.75
440.00	824.00	713.15	1283.67	−510.00	145.20	352.00	238.50
430.00	806.00	703.15	1265.67	−495.00	141.90	344.00	233.25
420.00	788.00	693.15	1247.67	−480.00	138.60	336.00	228.00
410.00	770.00	683.15	1229.67	−465.00	135.30	328.00	222.75
400.00	752.00	673.15	1211.67	−450.00	132.00	320.00	217.50
390.00	734.00	663.15	1193.67	−435.00	128.70	312.00	212.25
380.00	716.00	653.15	1175.67	−420.00	125.40	304.00	207.00
370.00	698.00	643.15	1157.67	−405.00	122.10	296.00	201.75
360.00	680.00	633.15	1139.67	−390.00	118.80	288.00	196.50
350.00	662.00	623.15	1121.67	−375.00	115.50	280.00	191.25
340.00	644.00	613.15	1103.67	−360.00	112.20	272.00	186.00
330.00	626.00	603.15	1085.67	−345.00	108.90	264.00	180.75
320.00	608.00	593.15	1067.67	−330.00	105.60	256.00	175.50
310.00	590.00	583.15	1049.67	−315.00	102.30	248.00	170.25
300.00	572.00	573.15	1031.67	−300.00	99.00	240.00	165.00
290.00	554.00	563.15	1013.67	−285.00	95.70	232.00	159.75
280.00	536.00	553.15	995.67	−270.00	92.40	224.00	154.50
270.00	518.00	543.15	977.67	−255.00	89.10	216.00	149.25
260.00	500.00	533.15	959.67	−240.00	85.80	208.00	144.00
250.00	482.00	523.15	941.67	−225.00	82.50	200.00	138.75
240.00	464.00	513.15	923.67	−210.00	79.20	192.00	133.50
230.00	446.00	503.15	905.67	−195.00	75.90	184.00	128.25
220.00	428.00	493.15	887.67	−180.00	72.60	176.00	123.00
210.00	410.00	483.15	869.67	−165.00	69.30	168.00	117.75
200.00	392.00	473.15	851.67	−150.00	66.00	160.00	112.50
190.00	374.00	463.15	833.67	−135.00	62.70	152.00	107.25
180.00	356.00	453.15	815.67	−120.00	59.40	144.00	102.00
170.00	338.00	443.15	797.67	−105.00	56.10	136.00	96.75
160.00	320.00	433.15	779.67	−90.00	52.80	128.00	91.50
150.00	302.00	423.15	761.67	−75.00	49.50	120.00	86.25
140.00	284.00	413.15	743.67	−60.00	46.20	112.00	81.00
130.00	266.00	403.15	725.67	−45.00	42.90	104.00	75.75
120.00	248.00	393.15	707.67	−30.00	39.60	96.00	70.50
110.00	230.00	383.15	689.67	−15.00	36.30	88.00	65.25
100.00	212.00	373.15	671.67	0.00	33.00	80.00	60.00
90.00	194.00	363.15	653.67	15.00	29.70	72.00	54.75
80.00	176.00	353.15	635.67	30.00	26.40	64.00	49.50
70.00	158.00	343.15	617.67	45.00	23.10	56.00	44.25
60.00	140.00	333.15	599.67	60.00	19.80	48.00	39.00
50.00	122.00	323.15	581.67	75.00	16.50	40.00	33.75
40.00	104.00	313.15	563.67	90.00	13.20	32.00	28.50
30.00	86.00	303.15	545.67	105.00	9.90	24.00	23.25
20.00	68.00	293.15	527.67	120.00	6.60	16.00	18.00
10.00	50.00	283.15	509.67	135.00	3.30	8.00	12.75
0.00	32.00	273.15	491.67	150.00	0.00	0.00	7.50
−10.00	14.00	263.15	473.67	165.00	−3.30	−8.00	2.25
-14.26	6.29	258.86	465.96	171.43	-4.71	-11.43	0.00
-17.78	0.00	255.37	459.67	176.67	-5.87	-14.22	-1.83
−20.00	−4.00	253.15	455.67	180.00	−6.60	−16.00	−3.00
−30.00	−22.00	243.15	437.67	195.00	−9.90	−24.00	−8.25
−40.00	−40.00	233.15	419.67	210.00	−13.20	−32.00	−13.50
−50.00	−58.00	223.15	401.67	225.00	−16.50	−40.00	−18.75
−60.00	−76.00	213.15	383.67	240.00	−19.80	−48.00	−24.00
−70.00	−94.00	203.15	365.67	255.00	−23.10	−56.00	−29.25
−80.00	−112.00	193.15	347.67	270.00	−26.40	−64.00	−34.50
−90.00	−130.00	183.15	329.67	285.00	−29.70	−72.00	−39.75
−100.00	−148.00	173.15	311.67	300.00	−33.00	−80.00	−45.00
−110.00	−166.00	163.15	293.67	315.00	−36.30	−88.00	−50.25
−120.00	−184.00	153.15	275.67	330.00	−39.60	−96.00	−55.50
−130.00	−202.00	143.15	257.67	345.00	−42.90	−104.00	−60.75
−140.00	−220.00	133.15	239.67	360.00	−46.20	−112.00	−66.00
−150.00	−238.00	123.15	221.67	375.00	−49.50	−120.00	−71.25
−160.00	−256.00	113.15	203.67	390.00	−52.80	−128.00	−76.50
−170.00	−274.00	103.15	185.67	405.00	−56.10	−136.00	−81.75
−180.00	−292.00	93.15	167.67	420.00	−59.40	−144.00	−87.00
−190.00	−310.00	83.15	149.67	435.00	−62.70	−152.00	−92.25
−200.00	−328.00	73.15	131.67	450.00	−66.00	−160.00	−97.50
−210.00	−346.00	63.15	113.67	465.00	−69.30	−168.00	−102.75
−220.00	−364.00	53.15	95.67	480.00	−72.60	−176.00	−108.00
−230.00	−382.00	43.15	77.67	495.00	−75.90	−184.00	−113.25
−240.00	−400.00	33.15	59.67	510.00	−79.20	−192.00	−118.50
−250.00	−418.00	23.15	41.67	525.00	−82.50	−200.00	−123.75
−260.00	−436.00	13.15	23.67	540.00	−85.80	−208.00	−129.00
−270.00	−454.00	3.15	5.67	555.00	−89.10	−216.00	−134.25
−273.15	−459.67	0.00	0.00	559.725	−90.1395	−218.52	−135.90375
Celsius	Fahrenheit	Kelvin	Rankine	Delisle	Newton	Réaumur	Rømer

Comment	Kelvin	Celsius	Fahrenheit	Rankine	Delisle	Newton	Réaumur	Rømer
Absolute zero	0.00	−273.15	−459.67	0.00	559.73	−90.14	−218.52	−135.90
Lowest recorded surface temperature on Earth^[1]	184	−89.2^[1]	−128.6^[1]	331	284	−29	−71	−39
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
Triple point of water	273.16	0.01	32.018	491.688	149.985	0.0033	0.008	7.50525
Average surface temperature on Earth	288	15	59	519	128	5	12	15
Average human body temperature*	310	37	98	558	95	12	29	27
Highest recorded surface temperature on Earth^[2]	331	58^[2]	136.4^[2]	596	63	19	46	38
Water boils (at standard pressure)	373.1339	99.9839	211.97102	671.64102	0.00	33.00	80.00	60.00
Titanium melts	1941	1668	3034	3494	−2352	550	1334	883
The surface of the Sun	5800	5500	9900	10400	−8100	1800	4400	2900

imagemap_invalid_image									Rankine (°R)
									Kelvin (K)
									Fahrenheit (°F)
									Celsius (°C) Réaumur (°Ré) Rømer (°Rø) Newton (°N)
									Delisle (°D)
	Absolute zero	Lowest recorded surface temperature on Earth^[1]	Fahrenheit's ice/water/salt mixture	Melting point of ice (at standard pressure)	Average surface temperature on Earth (15 °C)	Average human body temperature (37 °C)	Highest recorded surface temperature on Earth^[2]	Boiling point of water (at standard pressure)