Technical Information

Revised Thermocouple Reference Tables

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

Monograph 175

Revised to ITS-90

°C

Nickel-14.2%
Platinum-13% Rhodium
vs.
Platinum

MAXIMUM TEMPERATURE RANGE
Thermocouple Grade
32 to 2642°F
0 to 1450°C
Extension Grade
32 to 300°F
0 to 150°C
LIMITS OF ERROR
(whichever is greater)
Standard: 1.5°C or 0.25%
Special: 0.6°C or 0.1%
COMMENTS, BARE WIRE ENVIRONMENT:
Oxidizing or Inert; Do Not Insert in Metal Tubes;
Beware of Contamination; High Temperature
TEMPERATURE IN DEGREES °C
REFERENCE JUNCTION AT 0°C

Thermoelectric Voltage in Millivolts

°C -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 °C
-40-0.226-0.223-0.219-0.215-0.211-0.208-0.204-0.200-0.196-0.192-0.188-40
-30-0.188-0.184-0.180-0.175-0.171-0.167-0.163-0.158-0.154-0.150-0.145-30
-20-0.145-0.141-0.137-0.132-0.128-0.123-0.119-0.114-0.109-0.105-0.100-20
-10-0.100-0.095-0.091-0.086-0.081-0.076-0.071-0.066-0.061-0.056-0.051-10
0-0.051-0.046-0.041-0.036-0.031-0.026-0.021-0.016-0.011-0.0050.0000
°C -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 °C

°C 0 1 2 3 4 5 6 7 8 9 10 °C
00.0000.0050.0110.0160.0210.0270.0320.0380.0430.0490.0540
100.0540.0600.0650.0710.0770.0820.0880.0940.1000.1050.11110
200.1110.1170.1230.1290.1350.1410.1470.1530.1590.1650.17120
300.1710.1770.1830.1890.1950.2010.2070.2140.2200.2260.23230
400.2320.2390.2450.2510.2580.2640.2710.2770.2840.2900.29640
500.2960.3030.3100.3160.3230.3290.3360.3430.3490.3560.36350
600.3630.3690.3760.3830.3900.3970.4030.4100.4170.4240.43160
700.4310.4380.4450.4520.4590.4660.4730.4800.4870.4940.50170
800.5010.5080.5160.5230.5300.5370.5440.5520.5590.5660.57380
900.5730.5810.5880.5950.6030.6100.6180.6250.6320.6400.64790
1000.6470.6550.6620.6700.6770.6850.6930.7000.7080.7150.723100
1100.7230.7310.7380.7460.7540.7610.7690.7770.7850.7920.800110
1200.8000.8080.8160.8240.8320.8390.8470.8550.8630.8710.879120
1300.8790.8870.8950.9030.9110.9190.9270.9350.9430.9510.959130
1400.9590.9670.9760.9840.9921.0001.0081.0161.0251.0331.041140
1501.0411.0491.0581.0661.0741.0821.0911.0991.1071.1161.124150
1601.1241.1321.1411.1491.1581.1661.1751.1831.1911.2001.208160
1701.2081.2171.2251.2341.2421.2511.2601.2681.2771.2851.294170
1801.2941.3031.3111.3201.3291.3371.3461.3551.3631.3721.381180
1901.3811.3891.3981.4071.4161.4251.4331.4421.4511.4601.469190
2001.4691.4771.4861.4951.5041.5131.5221.5311.5401.5491.558200
2101.5581.5671.5751.5841.5931.6021.6111.6201.6291.6391.648210
2201.6481.6571.6661.6751.6841.6931.7021.7111.7201.7291.739220
2301.7391.7481.7571.7661.7751.7841.7941.8031.8121.8211.831230
2401.8311.8401.8491.8581.8681.8771.8861.8951.9051.9141.923240
2501.9231.9331.9421.9511.9611.9701.9801.9891.9982.0082.017250
2602.0172.0272.0362.0462.0552.0642.0742.0832.0932.1022.112260
2702.1122.1212.1312.1402.1502.1592.1692.1792.1882.1982.207270
2802.2072.2172.2262.2362.2462.2552.2652.2752.2842.2942.304280
2902.3042.3132.3232.3332.3422.3522.3622.3712.3812.3912.401290
3002.4012.4102.4202.4302.4402.4492.4592.4692.4792.4882.498300
3102.4982.5082.5182.5282.5382.5472.5572.5672.5772.5872.597310
3202.5972.6072.6172.6262.6362.6462.6562.6662.6762.6862.696320
3302.6962.7062.7162.7262.7362.7462.7562.7662.7762.7862.796330
3402.7962.8062.8162.8262.8362.8462.8562.8662.8762.8862.896340
3502.8962.9062.9162.9262.9372.9472.9572.9672.9772.9872.997350
3602.9973.0073.0183.0283.0383.0483.0583.0683.0793.0893.099360
3703.0993.1093.1193.1303.1403.1503.1603.1713.1813.1913.201370
3803.2013.2123.2223.2323.2423.2533.2633.2733.2843.2943.304380
3903.3043.3153.3253.3353.3463.3563.3663.3773.3873.3973.408390
4003.4083.4183.4283.4393.4493.4603.4703.4803.4913.5013.512400
4103.5123.5223.5333.5433.5533.5643.5743.5853.5953.6063.616410
4203.6163.6273.6373.6483.6583.6693.6793.6903.7003.7113.721420
4303.7213.7323.7423.7533.7643.7743.7853.7953.8063.8163.827430
4403.8273.8383.8483.8593.8693.8803.8913.9013.9123.9223.933440
4503.9333.9443.9543.9653.9763.9863.9974.0084.0184.0294.040450
4604.0404.0504.0614.0724.0834.0934.1044.1154.1254.1364.147460
4704.1474.1584.1684.1794.1904.2014.2114.2224.2334.2444.255470
4804.2554.2654.2764.2874.2984.3094.3194.3304.3414.3524.363480
4904.3634.3734.3844.3954.4064.4174.4284.4394.4494.4604.471490
5004.4714.4824.4934.5044.5154.5264.5374.5484.5584.5694.580500
5104.5804.5914.6024.6134.6244.6354.6464.6574.6684.6794.690510
5204.6904.7014.7124.7234.7344.7454.7564.7674.7784.7894.800520
5304.8004.8114.8224.8334.8444.8554.8664.8774.8884.8994.910530
5404.9104.9224.9334.9444.9554.9664.9774.9884.9995.0105.021540
5505.0215.0335.0445.0555.0665.0775.0885.0995.1115.1225.133550
5605.1335.1445.1555.1665.1785.1895.2005.2115.2225.2345.245560
5705.2455.2565.2675.2795.2905.3015.3125.3235.3355.3465.357570
5805.3575.3695.3805.3915.4025.4145.4255.4365.4485.4595.470580
5905.4705.4815.4935.5045.5155.5275.5385.5495.5615.5725.583590
6005.5835.5955.6065.6185.6295.6405.6525.6635.6745.6865.697600
6105.6975.7095.7205.7315.7435.7545.7665.7775.7895.8005.812610
6205.8125.8235.8345.8465.8575.8695.8805.8925.9035.9155.926620
6305.9265.9385.9495.9615.9725.9845.9956.0076.0186.0306.041630
6406.0416.0536.0656.0766.0886.0996.1116.1226.1346.1466.157640
6506.1576.1696.1806.1926.2046.2156.2276.2386.2506.2626.273650
6606.2736.2856.2976.3086.3206.3326.3436.3556.3676.3786.390660
6706.3906.4026.4136.4256.4376.4486.4606.4726.4846.4956.507670
6806.5076.5196.5316.5426.5546.5666.5786.5896.6016.6136.625680
6906.6256.6366.6486.6606.6726.6846.6956.7076.7196.7316.743690
7006.7436.7556.7666.7786.7906.8026.8146.8266.8386.8496.861700
7106.8616.8736.8856.8976.9096.9216.9336.9456.9566.9686.980710
7206.9806.9927.0047.0167.0287.0407.0527.0647.0767.0887.100720
7307.1007.1127.1247.1367.1487.1607.1727.1847.1967.2087.220730
7407.2207.2327.2447.2567.2687.2807.2927.3047.3167.3287.340740
7507.3407.3527.3647.3767.3897.4017.4137.4257.4377.4497.461750
7607.4617.4737.4857.4987.5107.5227.5347.5467.5587.5707.583760
7707.5837.5957.6077.6197.6317.6447.6567.6687.6807.6927.705770
7807.7057.7177.7297.7417.7537.7667.7787.7907.8027.8157.827780
7907.8277.8397.8517.8647.8767.8887.9017.9137.9257.9387.950790
8007.9507.9627.9747.9877.9998.0118.0248.0368.0488.0618.073800
8108.0738.0868.0988.1108.1238.1358.1478.1608.1728.1858.197810
8208.1978.2098.2228.2348.2478.2598.2728.2848.2968.3098.321820
8308.3218.3348.3468.3598.3718.3848.3968.4098.4218.4348.446830
8408.4468.4598.4718.4848.4968.5098.5218.5348.5468.5598.571840
8508.5718.5848.5978.6098.6228.6348.6478.6598.6728.6858.697850
8608.6978.7108.7228.7358.7488.7608.7738.7858.7988.8118.823860
8708.8238.8368.8498.8618.8748.8878.8998.9128.9258.9378.950870
8808.9508.9638.9758.9889.0019.0149.0269.0399.0529.0659.077880
8909.0779.0909.1039.1159.1289.1419.1549.1679.1799.1929.205890
9009.2059.2189.2309.2439.2569.2699.2829.2949.3079.3209.333900
9109.3339.3469.3599.3719.3849.3979.4109.4239.4369.4499.461910
9209.4619.4749.4879.5009.5139.5269.5399.5529.5659.5789.590920
9309.5909.6039.6169.6299.6429.6559.6689.6819.6949.7079.720930
9409.7209.7339.7469.7599.7729.7859.7989.8119.8249.8379.850940
9509.8509.8639.8769.8899.9029.9159.9289.9419.9549.9679.980950
9609.9809.99310.00610.01910.03210.04610.05910.07210.08510.09810.111960
97010.11110.12410.13710.15010.16310.17710.19010.20310.21610.22910.242970
98010.24210.25510.26810.28210.29510.30810.32110.33410.34710.36110.374980
99010.37410.38710.40010.41310.42710.44010.45310.46610.48010.49310.506990
100010.50610.51910.53210.54610.55910.57210.58510.59910.61210.62510.6381000
101010.63810.65210.66510.67810.69210.70510.71810.73110.74510.75810.7711010
102010.77110.78510.79810.81110.82510.83810.85110.86510.87810.89110.9051020
103010.90510.91810.93210.94510.95810.97210.98510.99811.01211.02511.0391030
104011.03911.05211.06511.07911.09211.10611.11911.13211.14611.15911.1731040
105011.17311.18611.20011.21311.22711.24011.25311.26711.28011.29411.3071050
106011.30711.32111.33411.34811.36111.37511.38811.40211.41511.42911.4421060
107011.44211.45611.46911.48311.49611.51011.52411.53711.55111.56411.5781070
108011.57811.59111.60511.61811.63211.64611.65911.67311.68611.70011.7141080
109011.71411.72711.74111.75411.76811.78211.79511.80911.82211.83611.8501090
110011.85011.86311.87711.89111.90411.91811.93111.94511.95911.97211.9861100
111011.98612.00012.01312.02712.04112.05412.06812.08212.09612.10912.1231110
112012.12312.13712.15012.16412.17812.19112.20512.21912.23312.24612.2601120
113012.26012.27412.28812.30112.31512.32912.34212.35612.37012.38412.3971130
114012.39712.41112.42512.43912.45312.46612.48012.49412.50812.52112.5351140
115012.53512.54912.56312.57712.59012.60412.61812.63212.64612.65912.6731150
116012.67312.68712.70112.71512.72912.74212.75612.77012.78412.79812.8121160
117012.81212.82512.83912.85312.86712.88112.89512.90912.92212.93612.9501170
118012.95012.96412.97812.99213.00613.01913.03313.04713.06113.07513.0891180
119013.08913.10313.11713.13113.14513.15813.17213.18613.20013.21413.2281190
120013.22813.24213.25613.27013.28413.29813.31113.32513.33913.35313.3671200
121013.36713.38113.39513.40913.42313.43713.45113.46513.47913.49313.5071210
122013.50713.52113.53513.54913.56313.57713.59013.60413.61813.63213.6461220
123013.64613.66013.67413.68813.70213.71613.73013.74413.75813.77213.7861230
124013.78613.80013.81413.82813.84213.85613.87013.88413.89813.91213.9261240
125013.92613.94013.95413.96813.98213.99614.01014.02414.03814.05214.0661250
126014.06614.08114.09514.10914.12314.13714.15114.16514.17914.19314.2071260
127014.20714.22114.23514.24914.26314.27714.29114.30514.31914.33314.3471270
128014.34714.36114.37514.39014.40414.41814.43214.44614.46014.47414.4881280
129014.48814.50214.51614.53014.54414.55814.57214.58614.60114.61514.6291290
130014.62914.64314.65714.67114.68514.69914.71314.72714.74114.75514.7701300
131014.77014.78414.79814.81214.82614.84014.85414.86814.88214.89614.9111310
132014.91114.92514.93914.95314.96714.98114.99515.00915.02315.03715.0521320
133015.05215.06615.08015.09415.10815.12215.13615.15015.16415.17915.1931330
134015.19315.20715.22115.23515.24915.26315.27715.29115.30615.32015.3341340
135015.33415.34815.36215.37615.39015.40415.41915.43315.44715.46115.4751350
136015.47515.48915.50315.51715.53115.54615.56015.57415.58815.60215.6161360
137015.61615.63015.64515.65915.67315.68715.70115.71515.72915.74315.7581370
138015.75815.77215.78615.80015.81415.82815.84215.85615.87115.88515.8991380
139015.89915.91315.92715.94115.95515.96915.98415.99816.01216.02616.0401390
140016.04016.05416.06816.08216.09716.11116.12516.13916.15316.16716.1811400
141016.18116.19616.21016.22416.23816.25216.26616.28016.29416.30916.3231410
142016.32316.33716.35116.36516.37916.39316.40716.42216.43616.45016.4641420
143016.46416.47816.49216.50616.52016.53416.54916.56316.57716.59116.6051430
144016.60516.61916.63316.64716.66216.67616.69016.70416.71816.73216.7461440
145016.74616.76016.77416.78916.80316.81716.83116.84516.85916.87316.8871450
146016.88716.90116.91516.93016.94416.95816.97216.98617.00017.01417.0281460
147017.02817.04217.05617.07117.08517.09917.11317.12717.14117.15517.1691470
148017.16917.18317.19717.21117.22517.24017.25417.26817.28217.29617.3101480
149017.31017.32417.33817.35217.36617.38017.39417.40817.42317.43717.4511490
150017.45117.46517.47917.49317.50717.52117.53517.54917.56317.57717.5911500
151017.59117.60517.61917.63317.64717.66117.67617.69017.70417.71817.7321510
152017.73217.74617.76017.77417.78817.80217.81617.83017.84417.85817.8721520
153017.87217.88617.90017.91417.92817.94217.95617.97017.98417.99818.0121530
154018.01218.02618.04018.05418.06818.08218.09618.11018.12418.13818.1521540
155018.15218.16618.18018.19418.20818.22218.23618.25018.26418.27818.2921550
156018.29218.30618.32018.33418.34818.36218.37618.39018.40418.41718.4311560
157018.43118.44518.45918.47318.48718.50118.51518.52918.54318.55718.5711570
158018.57118.58518.59918.61318.62718.64018.65418.66818.68218.69618.7101580
159018.71018.72418.73818.75218.76618.77918.79318.80718.82118.83518.8491590
160018.84918.86318.87718.89118.90418.91818.93218.94618.96018.97418.9881600
161018.98819.00219.01519.02919.04319.05719.07119.08519.09819.11219.1261610
162019.12619.14019.15419.16819.18119.19519.20919.22319.23719.25019.2641620
163019.26419.27819.29219.30619.31919.33319.34719.36119.37519.38819.4021630
164019.40219.41619.43019.44419.45719.47119.48519.49919.51219.52619.5401640
165019.54019.55419.56719.58119.59519.60919.62219.63619.65019.66319.6771650
166019.67719.69119.70519.71819.73219.74619.75919.77319.78719.80019.8141660
167019.81419.82819.84119.85519.86919.88219.89619.91019.92319.93719.9511670
168019.95119.96419.97819.99220.00520.01920.03220.04620.06020.07320.0871680
169020.08720.10020.11420.12720.14120.15420.16820.18120.19520.20820.2221690
170020.22220.23520.24920.26220.27520.28920.30220.31620.32920.34220.3561700
171020.35620.36920.38220.39620.40920.42220.43620.44920.46220.47520.4881710
172020.48820.50220.51520.52820.54120.55420.56720.58120.59420.60720.6201720
173020.62020.63320.64620.65920.67220.68520.69820.71120.72420.73620.7491730
174020.74920.76220.77520.78820.80120.81320.82620.83920.85220.86420.8771740
175020.87720.89020.90220.91520.92820.94020.95320.96520.97820.99021.0031750
176021.00321.01521.02721.04021.05221.06521.07721.08921.1011760
°C 0 1 2 3 4 5 6 7 8 9 10 °C
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