Technical Information

Revised Thermocouple Reference Tables

TYPE
E
Reference Tables N.I.S.T.

Monograph 175

Revised to ITS-90

°F

Nickel-Chromium
vs.
Copper-Nickel

MAXIMUM TEMPERATURE RANGE
Thermocouple Grade
– 328 to 1652°F
– 200 to 900°C
Extension Grade
32 to 392°F
0 to 200°C
LIMITS OF ERROR
(whichever is greater)
Standard: 1.7°C or 0.5% Above 0°C
1.7°C or 1.0% Below 0°C
Special: 1.0°C or 0.4%
COMMENTS, BARE WIRE ENVIRONMENT:
Oxidizing or Inert; Limited Use in Vacuum or
Reducing; Highest EMF Change per Degree
TEMPERATURE IN DEGREES °F
REFERENCE JUNCTION AT 32°F

Thermoelectric Voltage in Millivolts

°F -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 °F
-450-9.835-9.834-9.833-9.832-9.830-450
-440-9.830-9.829-9.827-9.825-9.823-9.821-9.819-9.817-9.814-9.812-9.809-440
-430-9.809-9.806-9.803-9.800-9.797-9.793-9.790-9.786-9.782-9.779-9.775-430
-420-9.775-9.771-9.766-9.762-9.758-9.753-9.749-9.744-9.739-9.734-9.729-420
-410-9.729-9.724-9.718-9.713-9.707-9.702-9.696-9.690-9.684-9.678-9.672-410
-400-9.672-9.666-9.659-9.653-9.646-9.639-9.632-9.625-9.618-9.611-9.604-400
-390-9.604-9.597-9.589-9.581-9.574-9.566-9.558-9.550-9.542-9.534-9.525-390
-380-9.525-9.517-9.508-9.500-9.491-9.482-9.473-9.464-9.455-9.446-9.436-380
-370-9.436-9.427-9.417-9.408-9.398-9.388-9.378-9.368-9.358-9.348-9.338-370
-360-9.338-9.327-9.317-9.306-9.295-9.285-9.274-9.263-9.252-9.241-9.229-360
-350-9.229-9.218-9.207-9.195-9.184-9.172-9.160-9.148-9.136-9.124-9.112-350
-340-9.112-9.100-9.088-9.075-9.063-9.050-9.038-9.025-9.012-8.999-8.986-340
-330-8.986-8.973-8.960-8.947-8.934-8.920-8.907-8.893-8.880-8.866-8.852-330
-320-8.852-8.839-8.825-8.811-8.797-8.782-8.768-8.754-8.739-8.725-8.710-320
-310-8.710-8.696-8.681-8.666-8.652-8.637-8.622-8.607-8.591-8.576-8.561-310
-300-8.561-8.546-8.530-8.515-8.499-8.483-8.468-8.452-8.436-8.420-8.404-300
-290-8.404-8.388-8.372-8.356-8.339-8.323-8.307-8.290-8.273-8.257-8.240-290
-280-8.240-8.223-8.206-8.189-8.173-8.155-8.138-8.121-8.104-8.087-8.069-280
-270-8.069-8.052-8.034-8.017-7.999-7.981-7.963-7.945-7.928-7.910-7.891-270
-260-7.891-7.873-7.855-7.837-7.819-7.800-7.782-7.763-7.745-7.726-7.707-260
-250-7.707-7.688-7.670-7.651-7.632-7.613-7.593-7.574-7.555-7.536-7.516-250
-240-7.516-7.497-7.478-7.458-7.438-7.419-7.399-7.379-7.359-7.339-7.319-240
-230-7.319-7.299-7.279-7.259-7.239-7.219-7.198-7.178-7.157-7.137-7.116-230
-220-7.116-7.096-7.075-7.054-7.033-7.013-6.992-6.971-6.950-6.928-6.907-220
-210-6.907-6.886-6.865-6.843-6.822-6.801-6.779-6.757-6.736-6.714-6.692-210
-200-6.692-6.671-6.649-6.627-6.605-6.583-6.561-6.539-6.516-6.494-6.472-200
-190-6.472-6.449-6.427-6.405-6.382-6.359-6.337-6.314-6.291-6.269-6.246-190
-180-6.246-6.223-6.200-6.177-6.154-6.130-6.107-6.084-6.061-6.037-6.014-180
-170-6.014-5.991-5.967-5.943-5.920-5.896-5.872-5.849-5.825-5.801-5.777-170
-160-5.777-5.753-5.729-5.705-5.681-5.656-5.632-5.608-5.584-5.559-5.535-160
-150-5.535-5.510-5.486-5.461-5.436-5.412-5.387-5.362-5.337-5.312-5.287-150
-140-5.287-5.262-5.237-5.212-5.187-5.162-5.136-5.111-5.086-5.060-5.035-140
-130-5.035-5.009-4.984-4.958-4.932-4.907-4.881-4.855-4.829-4.803-4.777-130
-120-4.777-4.751-4.725-4.699-4.673-4.647-4.621-4.594-4.568-4.542-4.515-120
-110-4.515-4.489-4.462-4.436-4.409-4.382-4.355-4.329-4.302-4.275-4.248-110
-100-4.248-4.221-4.194-4.167-4.140-4.113-4.086-4.058-4.031-4.004-3.976-100
-90-3.976-3.949-3.922-3.894-3.867-3.839-3.811-3.784-3.756-3.728-3.700-90
-80-3.700-3.672-3.645-3.617-3.589-3.561-3.532-3.504-3.476-3.448-3.420-80
-70-3.420-3.391-3.363-3.335-3.306-3.278-3.249-3.221-3.192-3.163-3.135-70
-60-3.135-3.106-3.077-3.048-3.020-2.991-2.962-2.933-2.904-2.875-2.846-60
-50-2.846-2.816-2.787-2.758-2.729-2.699-2.670-2.641-2.611-2.582-2.552-50
-40-2.552-2.523-2.493-2.463-2.434-2.404-2.374-2.344-2.315-2.285-2.255-40
-30-2.255-2.225-2.195-2.165-2.135-2.105-2.074-2.044-2.014-1.984-1.953-30
-20-1.953-1.923-1.893-1.862-1.832-1.801-1.771-1.740-1.709-1.679-1.648-20
-10-1.648-1.617-1.587-1.556-1.525-1.494-1.463-1.432-1.401-1.370-1.339-10
0-1.339-1.308-1.277-1.245-1.214-1.183-1.152-1.120-1.089-1.057-1.0260
°F -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 °F

°F 0 1 2 3 4 5 6 7 8 9 10 °F
0-1.026-0.994-0.963-0.931-0.900-0.868-0.836-0.805-0.773-0.741-0.7090
10-0.709-0.677-0.645-0.614-0.582-0.550-0.517-0.485-0.453-0.421-0.38910
20-0.389-0.357-0.324-0.292-0.260-0.227-0.195-0.163-0.130-0.098-0.06520
30-0.065-0.0330.0000.0330.0650.0980.1310.1630.1960.2290.26230
400.2620.2940.3270.3600.3930.4260.4590.4920.5250.5580.59140
500.5910.6240.6570.6910.7240.7570.7900.8240.8570.8900.92450
600.9240.9570.9901.0241.0571.0911.1241.1581.1921.2251.25960
701.2591.2921.3261.3601.3941.4271.4611.4951.5291.5631.59770
801.5971.6311.6651.6991.7331.7671.8011.8351.8691.9041.93880
901.9381.9722.0062.0412.0752.1092.1442.1782.2122.2472.28190
1002.2812.3162.3512.3852.4202.4542.4892.5242.5582.5932.628100
1102.6282.6632.6982.7332.7672.8022.8372.8722.9072.9422.977110
1202.9773.0123.0483.0833.1183.1533.1883.2243.2593.2943.330120
1303.3303.3653.4003.4363.4713.5073.5423.5783.6133.6493.685130
1403.6853.7203.7563.7923.8273.8633.8993.9353.9704.0064.042140
1504.0424.0784.1144.1504.1864.2224.2584.2944.3304.3664.403150
1604.4034.4394.4754.5114.5474.5844.6204.6564.6934.7294.766160
1704.7664.8024.8394.8754.9124.9484.9855.0215.0585.0955.131170
1805.1315.1685.2055.2425.2785.3155.3525.3895.4265.4635.500180
1905.5005.5375.5745.6115.6485.6855.7225.7595.7965.8335.871190
2005.8715.9085.9455.9826.0206.0576.0946.1326.1696.2076.244200
2106.2446.2816.3196.3566.3946.4326.4696.5076.5446.5826.620210
2206.6206.6586.6956.7336.7716.8096.8476.8846.9226.9606.998220
2306.9987.0367.0747.1127.1507.1887.2267.2647.3027.3417.379230
2407.3797.4177.4557.4937.5327.5707.6087.6477.6857.7237.762240
2507.7627.8007.8397.8777.9167.9547.9938.0318.0708.1088.147250
2608.1478.1868.2248.2638.3028.3408.3798.4188.4578.4968.535260
2708.5358.5738.6128.6518.6908.7298.7688.8078.8468.8858.924270
2808.9248.9639.0029.0419.0819.1209.1599.1989.2379.2779.316280
2909.3169.3559.3959.4349.4739.5139.5529.5919.6319.6709.710290
3009.7109.7499.7899.8289.8689.9079.9479.98710.02610.06610.106300
31010.10610.14510.18510.22510.26510.30410.34410.38410.42410.46410.503310
32010.50310.54310.58310.62310.66310.70310.74310.78310.82310.86310.903320
33010.90310.94310.98311.02411.06411.10411.14411.18411.22411.26511.305330
34011.30511.34511.38511.42611.46611.50611.54711.58711.62711.66811.708340
35011.70811.74911.78911.83011.87011.91111.95111.99212.03212.07312.113350
36012.11312.15412.19512.23512.27612.31712.35712.39812.43912.48012.520360
37012.52012.56112.60212.64312.68412.72412.76512.80612.84712.88812.929370
38012.92912.97013.01113.05213.09313.13413.17513.21613.25713.29813.339380
39013.33913.38013.42113.46213.50413.54513.58613.62713.66813.71013.751390
40013.75113.79213.83313.87513.91613.95713.99914.04014.08114.12314.164400
41014.16414.20514.24714.28814.33014.37114.41314.45414.49614.53714.579410
42014.57914.62014.66214.70414.74514.78714.82814.87014.91214.95314.995420
43014.99515.03715.07815.12015.16215.20415.24515.28715.32915.37115.413430
44015.41315.45415.49615.53815.58015.62215.66415.70615.74815.79015.831440
45015.83115.87315.91515.95715.99916.04116.08316.12516.16816.21016.252450
46016.25216.29416.33616.37816.42016.46216.50416.54716.58916.63116.673460
47016.67316.71516.75816.80016.84216.88416.92716.96917.01117.05417.096470
48017.09617.13817.18117.22317.26517.30817.35017.39217.43517.47717.520480
49017.52017.56217.60517.64717.69017.73217.77517.81717.86017.90217.945490
50017.94517.98718.03018.07318.11518.15818.20018.24318.28618.32818.371500
51018.37118.41418.45618.49918.54218.58518.62718.67018.71318.75618.798510
52018.79818.84118.88418.92718.96919.01219.05519.09819.14119.18419.227520
53019.22719.26919.31219.35519.39819.44119.48419.52719.57019.61319.656530
54019.65619.69919.74219.78519.82819.87119.91419.95720.00020.04320.086540
55020.08620.12920.17220.21620.25920.30220.34520.38820.43120.47420.517550
56020.51720.56120.60420.64720.69020.73320.77720.82020.86320.90620.950560
57020.95020.99321.03621.08021.12321.16621.20921.25321.29621.33921.383570
58021.38321.42621.47021.51321.55621.60021.64321.68621.73021.77321.817580
59021.81721.86021.90421.94721.99122.03422.07822.12122.16522.20822.252590
60022.25222.29522.33922.38222.42622.46922.51322.55622.60022.64422.687600
61022.68722.73122.77422.81822.86222.90522.94922.99323.03623.08023.124610
62023.12423.16723.21123.25523.29823.34223.38623.42923.47323.51723.561620
63023.56123.60423.64823.69223.73623.78023.82323.86723.91123.95523.999630
64023.99924.04224.08624.13024.17424.21824.26224.30524.34924.39324.437640
65024.43724.48124.52524.56924.61324.65724.70124.74524.78924.83224.876650
66024.87624.92024.96425.00825.05225.09625.14025.18425.22825.27225.316660
67025.31625.36025.40425.44825.49325.53725.58125.62525.66925.71325.757670
68025.75725.80125.84525.88925.93325.97726.02226.06626.11026.15426.198680
69026.19826.24226.28626.33126.37526.41926.46326.50726.55226.59626.640690
70026.64026.68426.72826.77326.81726.86126.90526.95026.99427.03827.082700
71027.08227.12727.17127.21527.25927.30427.34827.39227.43727.48127.525710
72027.52527.57027.61427.65827.70327.74727.79127.83627.88027.92427.969720
73027.96928.01328.05728.10228.14628.19128.23528.27928.32428.36828.413730
74028.41328.45728.50128.54628.59028.63528.67928.72428.76828.81328.857740
75028.85728.90128.94628.99029.03529.07929.12429.16829.21329.25729.302750
76029.30229.34629.39129.43529.48029.52529.56929.61429.65829.70329.747760
77029.74729.79229.83629.88129.92529.97030.01530.05930.10430.14830.193770
78030.19330.23830.28230.32730.37130.41630.46130.50530.55030.59530.639780
79030.63930.68430.72830.77330.81830.86230.90730.95230.99631.04131.086790
80031.08631.13031.17531.22031.26431.30931.35431.39831.44331.48831.533800
81031.53331.57731.62231.66731.71131.75631.80131.84631.89031.93531.980810
82031.98032.02532.06932.11432.15932.20432.24832.29332.33832.38332.427820
83032.42732.47232.51732.56232.60632.65132.69632.74132.78632.83032.875830
84032.87532.92032.96533.01033.05433.09933.14433.18933.23433.27833.323840
85033.32333.36833.41333.45833.50333.54733.59233.63733.68233.72733.772850
86033.77233.81633.86133.90633.95133.99634.04134.08634.13034.17534.220860
87034.22034.26534.31034.35534.40034.44534.48934.53434.57934.62434.669870
88034.66934.71434.75934.80434.84934.89334.93834.98335.02835.07335.118880
89035.11835.16335.20835.25335.29835.34335.38735.43235.47735.52235.567890
90035.56735.61235.65735.70235.74735.79235.83735.88235.92735.97236.016900
91036.01636.06136.10636.15136.19636.24136.28636.33136.37636.42136.466910
92036.46636.51136.55636.60136.64636.69136.73636.78136.82636.87036.915920
93036.91536.96037.00537.05037.09537.14037.18537.23037.27537.32037.365930
94037.36537.41037.45537.50037.54537.59037.63537.68037.72537.77037.815940
95037.81537.86037.90537.95037.99538.04038.08538.13038.17538.22038.265950
96038.26538.30938.35438.39938.44438.48938.53438.57938.62438.66938.714960
97038.71438.75938.80438.84938.89438.93938.98439.02939.07439.11939.164970
98039.16439.20939.25439.29939.34439.38939.43439.47939.52439.56939.614980
99039.61439.65939.70439.74939.79439.83939.88439.92939.97440.01940.064990
100040.06440.10940.15440.19940.24340.28840.33340.37840.42340.46840.5131000
101040.51340.55840.60340.64840.69340.73840.78340.82840.87340.91840.9631010
102040.96341.00841.05341.09841.14341.18841.23341.27841.32341.36841.4121020
103041.41241.45741.50241.54741.59241.63741.68241.72741.77241.81741.8621030
104041.86241.90741.95241.99742.04242.08742.13242.17642.22142.26642.3111040
105042.31142.35642.40142.44642.49142.53642.58142.62642.67142.71542.7601050
106042.76042.80542.85042.89542.94042.98543.03043.07543.12043.16543.2091060
107043.20943.25443.29943.34443.38943.43443.47943.52443.56943.61343.6581070
108043.65843.70343.74843.79343.83843.88343.92843.97244.01744.06244.1071080
109044.10744.15244.19744.24244.28644.33144.37644.42144.46644.51144.5551090
110044.55544.60044.64544.69044.73544.78044.82444.86944.91444.95945.0041100
111045.00445.04945.09345.13845.18345.22845.27345.31745.36245.40745.4521110
112045.45245.49745.54145.58645.63145.67645.72045.76545.81045.85545.9001120
113045.90045.94445.98946.03446.07946.12346.16846.21346.25846.30246.3471130
114046.34746.39246.43746.48146.52646.57146.61646.66046.70546.75046.7941140
115046.79446.83946.88446.92946.97347.01847.06347.10747.15247.19747.2411150
116047.24147.28647.33147.37547.42047.46547.50947.55447.59947.64347.6881160
117047.68847.73347.77747.82247.86747.91147.95648.00148.04548.09048.1351170
118048.13548.17948.22448.26848.31348.35848.40248.44748.49248.53648.5811180
119048.58148.62548.67048.71548.75948.80448.84848.89348.93748.98249.0271190
120049.02749.07149.11649.16049.20549.24949.29449.33849.38349.42849.4721200
121049.47249.51749.56149.60649.65049.69549.73949.78449.82849.87349.9171210
122049.91749.96250.00650.05150.09550.14050.18450.22950.27350.31850.3621220
123050.36250.40750.45150.49550.54050.58450.62950.67350.71850.76250.8071230
124050.80750.85150.89550.94050.98451.02951.07351.11851.16251.20651.2511240
125051.25151.29551.34051.38451.42851.47351.51751.56151.60651.65051.6951250
126051.69551.73951.78351.82851.87251.91651.96152.00552.04952.09452.1381260
127052.13852.18252.22752.27152.31552.36052.40452.44852.49352.53752.5811270
128052.58152.62552.67052.71452.75852.80352.84752.89152.93552.98053.0241280
129053.02453.06853.11253.15753.20153.24553.28953.33453.37853.42253.4661290
130053.46653.51053.55553.59953.64353.68753.73253.77653.82053.86453.9081300
131053.90853.95253.99754.04154.08554.12954.17354.21854.26254.30654.3501310
132054.35054.39454.43854.48254.52754.57154.61554.65954.70354.74754.7911320
133054.79154.83554.87954.92454.96855.01255.05655.10055.14455.18855.2321330
134055.23255.27655.32055.36455.40855.45355.49755.54155.58555.62955.6731340
135055.67355.71755.76155.80555.84955.89355.93755.98156.02556.06956.1131350
136056.11356.15756.20156.24556.28956.33356.37756.42156.46556.50956.5531360
137056.55356.59756.64156.68556.72956.77356.81656.86056.90456.94856.9921370
138056.99257.03657.08057.12457.16857.21257.25657.30057.34457.38757.4311380
139057.43157.47557.51957.56357.60757.65157.69557.73857.78257.82657.8701390
140057.87057.91457.95858.00258.04558.08958.13358.17758.22158.26558.3081400
141058.30858.35258.39658.44058.48458.52758.57158.61558.65958.70258.7461410
142058.74658.79058.83458.87858.92158.96559.00959.05359.09659.14059.1841420
143059.18459.22859.27159.31559.35959.40259.44659.49059.53459.57759.6211430
144059.62159.66559.70859.75259.79659.83959.88359.92759.97060.01460.0581440
145060.05860.10160.14560.18960.23260.27660.32060.36360.40760.45160.4941450
146060.49460.53860.58160.62560.66960.71260.75660.79960.84360.88760.9301460
147060.93060.97461.01761.06161.10561.14861.19261.23561.27961.32261.3661470
148061.36661.40961.45361.49661.54061.58361.62761.67161.71461.75861.8011480
149061.80161.84561.88861.93261.97562.01862.06262.10562.14962.19262.2361490
150062.23662.27962.32362.36662.41062.45362.49662.54062.58362.62762.6701500
151062.67062.71462.75762.80062.84462.88762.93162.97463.01763.06163.1041510
152063.10463.14863.19163.23463.27863.32163.36463.40863.45163.49463.5381520
153063.53863.58163.62463.66863.71163.75463.79863.84163.88463.92763.9711530
154063.97164.01464.05764.10164.14464.18764.23064.27464.31764.36064.4031540
155064.40364.44764.49064.53364.57664.61964.66364.70664.74964.79264.8351550
156064.83564.87964.92264.96565.00865.05165.09465.13865.18165.22465.2671560
157065.26765.31065.35365.39665.44065.48365.52665.56965.61265.65565.6981570
158065.69865.74165.78465.82765.87165.91465.95766.00066.04366.08666.1291580
159066.12966.17266.21566.25866.30166.34466.38766.43066.47366.51666.5591590
160066.55966.60266.64566.68866.73166.77466.81766.86066.90366.94666.9891600
161066.98967.03167.07467.11767.16067.20367.24667.28967.33267.37567.4181610
162067.41867.46067.50367.54667.58967.63267.67567.71867.76067.80367.8461620
163067.84667.88967.93267.97468.01768.06068.10368.14668.18868.23168.2741630
164068.27468.31768.35968.40268.44568.48868.53068.57368.61668.65968.7011640
165068.70168.74468.78768.82968.87268.91568.95769.00069.04369.08569.1281650
166069.12869.17169.21369.25669.29869.34169.38469.42669.46969.51169.5541660
167069.55469.59769.63969.68269.72469.76769.80969.85269.89469.93769.9791670
168069.97970.02270.06470.10770.14970.19270.23470.27770.31970.36270.4041680
169070.40470.44770.48970.53170.57470.61670.65970.70170.74470.78670.8281690
170070.82870.87170.91370.95570.99871.04071.08271.12571.16771.20971.2521700
171071.25271.29471.33671.37971.42171.46371.50671.54871.59071.63271.6751710
172071.67571.71771.75971.80171.84471.88671.92871.97072.01272.05572.0971720
173072.09772.13972.18172.22372.26672.30872.35072.39272.43472.47672.5181730
174072.51872.56172.60372.64572.68772.72972.77172.81372.85572.89772.9391740
175072.93972.98173.02373.06673.10873.15073.19273.23473.27673.31873.3601750
176073.36073.40273.44473.48673.52873.57073.61273.65473.69673.73873.7801760
177073.78073.82173.86373.90573.94773.98974.03174.07374.11574.15774.1991770
178074.19974.24174.28374.32474.36674.40874.45074.49274.53474.57674.6181780
179074.61874.65974.70174.74374.78574.82774.86974.91074.95274.99475.0361790
180075.03675.07875.12075.16175.20375.24575.28775.32975.37075.41275.4541800
181075.45475.49675.53875.57975.62175.66375.70575.74675.78875.83075.8721810
182075.87275.91375.95575.99776.03976.08176.12276.16476.20676.24876.2891820
183076.28976.33176.3731830
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