Tables of Thermoelectric Voltages for All Thermocouple Types

The following tables give the output voltage J, K, T, S, B, E, R and N thermocouple (TC) types over a range of temperature in 5°C increments. In each case, the TC reference temperature is 0°C. The first-named material will be the positive terminal. For example, in the J-type TC table iron will be the positive lead when the reference temperature is lower than the measurement. The temperatures are in °C and the output is in mV. Each column is in 5°C increments from the temperature of that row.

Type J: IRON-CONSTANTAN

	0	5	10	15	20	25	30	35	40	45
-250									-8.095	-7.996
-200	-7.890	-7.778	-7.659	-7.534	-7.403	-7.265	-7.123	-6.975	-6.821	-6.663
-150	-6.500	-6.332	-6.159	-5.982	-5.801	-5.616	-5.426	-5.233	-5.037	-4.836
-100	-4.633	-4.425	-4.215	-4.002	-3.786	-3.566	-3.344	-3.120	-2.893	-2.663
-50	-2.431	-2.197	-1.961	-1.722	-1.482	-1.239	-0.995	-0.749	-0.501	-0.251
0	0.000	0.253	0.507	0.762	1.019	1.277	1.537	1.797	2.059	2.322
50	2.585	2.850	3.116	3.382	3.650	3.918	4.187	4.456	4.726	4.997
100	5.269	5.541	5.814	6.087	6.360	6.634	6.909	7.184	7.459	7.734
150	8.010	8.286	8.562	8.839	9.115	9.392	9.669	9.947	10.224	10.501
200	10.779	11.056	11.334	11.612	11.889	12.167	12.445	12.722	13.000	13.278
250	13.555	13.833	14.110	14.388	14.665	14.942	15.219	15.496	15.773	16.050
300	16.327	16.604	16.881	17.157	17.434	17.710	17.986	18.262	18.538	18.814
350	19.090	19.366	19.642	19.918	20.194	20.469	20.745	21.021	21.297	21.572
400	21.848	22.124	22.400	22.676	22.952	23.228	23.504	23.780	24.057	24.333
450	24.610	24.887	25.164	25.442	25.720	25.998	26.276	26.555	26.834	27.113
500	27.393	27.673	27.953	28.234	28.516	28.798	29.080	29.363	29.647	29.931
550	30.216	30.502	30.788	31.074	31.362	31.650	31.939	32.229	32.519	32.810
600	33.102	33.395	33.689	33.984	34.279	34.575	34.873	35.171	35.470	35.770
650	36.071	36.373	36.675	36.979	37.284	37.590	37.896	38.204	38.512	38.822
700	39.132	39.443	39.755	40.068	40.382	40.696	41.012	41.328	41.645	41.962
750	42.281	42.599	42.919	43.239	43.559	43.881	44.203	44.525	44.848	45.171
800	45.494	45.818	46.141	46.464	46.786	47.109	47.431	47.753	48.074	48.395
850	48.715	49.034	49.353	49.672	49.989	50.306	50.622	50.937	51.251	51.565
900	51.877	52.189	52.500	52.810	53.119	53.427	53.735	54.041	54.347	54.652
950	54.956	55.259	55.561	55.863	56.164	56.464	56.763	57.062	57.360	57.657
1000	57.953	58.249	58.545	58.840	59.134	59.428	59.721	60.014	60.307	60.599
1050	60.890	61.182	61.473	61.763	62.054	62.344	62.634	62.924	63.214	63.503
1100	63.792	64.081	64.370	64.659	64.948	65.237	65.525	65.814	66.102	66.391
1150	66.679	66.967	67.255	67.543	67.831	68.119	68.406	68.693	68.980	69.267
1200	69.553

Type K: CHROMEL-ALUMEL

	0	5	10	15	20	25	30	35	40	45
-300							-6.458	-6.452	-6.441	-6.425
-250	-6.404	-6.377	-6.344	-6.306	-6.262	-6.213	-6.158	-6.099	-6.035	-5.965
-200	-5.891	-5.813	-5.730	-5.642	-5.550	-5.454	-5.354	-5.250	-5.141	-5.029
-150	-4.913	-4.793	-4.669	-4.542	-4.411	-4.276	-4.138	-3.997	-3.852	-3.705
-100	-3.554	-3.400	-3.243	-3.083	-2.920	-2.755	-2.587	-2.416	-2.243	-2.067
-50	-1.889	-1.709	-1.527	-1.343	-1.156	-0.968	-0.778	-0.586	-0.392	-0.197
0	0.000	0.198	0.397	0.597	0.798	1.000	1.203	1.407	1.612	1.817
50	2.023	2.230	2.436	2.644	2.851	3.059	3.267	3.474	3.682	3.889
100	4.096	4.303	4.509	4.715	4.920	5.124	5.328	5.532	5.735	5.937
150	6.138	6.339	6.540	6.741	6.941	7.140	7.340	7.540	7.739	7.939
200	8.138	8.338	8.539	8.739	8.940	9.141	9.343	9.545	9.747	9.950
250	10.153	10.357	10.561	10.766	10.971	11.176	11.382	11.588	11.795	12.001
300	12.209	12.416	12.624	12.831	13.040	13.248	13.457	13.665	13.874	14.084
350	14.293	14.503	14.713	14.923	15.133	15.343	15.554	15.764	15.975	16.186
400	16.397	16.608	16.820	17.031	17.243	17.455	17.667	17.879	18.091	18.303
450	18.516	18.728	18.941	19.154	19.366	19.579	19.792	20.005	20.218	20.431
500	20.644	20.857	21.071	21.284	21.497	21.710	21.924	22.137	22.350	22.563
550	22.776	22.990	23.203	23.416	23.629	23.842	24.055	24.267	24.480	24.693
600	24.905	25.118	25.330	25.543	25.755	25.967	26.179	26.390	26.602	26.814
650	27.025	27.236	27.447	27.658	27.869	28.079	28.289	28.500	28.710	28.919
700	29.129	29.338	29.548	29.757	29.965	30.174	30.382	30.590	30.798	31.006
750	31.213	31.421	31.628	31.834	32.041	32.247	32.453	32.659	32.865	33.070
800	33.275	33.480	33.685	33.889	34.093	34.297	34.501	34.704	34.908	35.110
850	35.313	35.516	35.718	35.920	36.121	36.323	36.524	36.725	36.925	37.126
900	37.326	37.526	37.725	37.925	38.124	38.323	38.522	38.720	38.918	39.116
950	39.314	39.511	39.708	39.905	40.101	40.298	40.494	40.690	40.885	41.081
1000	41.276	41.470	41.665	41.859	42.053	42.247	42.440	42.633	42.826	43.019
1050	43.211	43.403	43.595	43.787	43.978	44.169	44.359	44.550	44.740	44.929
1100	45.119	45.308	45.497	45.685	45.873	46.061	46.249	46.436	46.623	46.809
1150	46.995	47.181	47.367	47.552	47.737	47.921	48.105	48.289	48.473	48.656
1200	48.838	49.021	49.202	49.384	49.565	49.746	49.926	50.106	50.286	50.465
1250	50.644	50.822	51.000	51.178	51.355	51.532	51.708	51.885	52.060	52.235
1300	52.410	52.585	52.759	52.932	53.106	53.279	53.451	53.623	53.795	53.967
1350	54.138	54.308	54.479	54.649	54.819

Type T: COPPER-CONSTANTAN

	0	5	10	15	20	25	30	35	40	45
-300							-6.258	-6.248	-6.232	-6.209
-250	-6.180	-6.146	-6.105	-6.059	-6.007	-5.950	-5.888	-5.823	-5.753	-5.680
-200	-5.603	-5.523	-5.439	-5.351	-5.261	-5.167	-5.070	-4.969	-4.865	-4.759
-150	-4.648	-4.535	-4.419	-4.300	-4.177	-4.052	-3.923	-3.791	-3.657	-3.519
-100	-3.379	-3.235	-3.089	-2.940	-2.788	-2.633	-2.476	-2.316	-2.153	-1.987
-50	-1.819	-1.648	-1.475	-1.299	-1.121	-0.940	-0.757	-0.571	-0.383	-0.193
0	0.000	0.195	0.391	0.589	0.790	0.992	1.196	1.403	1.612	1.823
50	2.036	2.251	2.468	2.687	2.909	3.132	3.358	3.585	3.814	4.046
100	4.279	4.513	4.750	4.988	5.228	5.470	5.714	5.959	6.206	6.454
150	6.704	6.956	7.209	7.463	7.720	7.977	8.237	8.497	8.759	9.023
200	9.288	9.555	9.822	10.092	10.362	10.634	10.907	11.182	11.458	11.735
250	12.013	12.293	12.574	12.856	13.139	13.423	13.709	13.995	14.283	14.572
300	14.862	15.153	15.445	15.738	16.032	16.327	16.624	16.921	17.219	17.518
350	17.819	18.120	18.422	18.725	19.030	19.335	19.641	19.947	20.255	20.563
400	20.872

Type S: PLATINUM-PLATINUM/10%RHODIUM

	0	5	10	15	20	25	30	35	40	45
-50	-0.236	-0.215	-0.194	-0.173	-0.150	-0.127	-0.103	-0.078	-0.053	-0.027
0	0.000	0.027	0.055	0.084	0.113	0.143	0.173	0.204	0.235	0.267
50	0.299	0.332	0.365	0.399	0.433	0.467	0.502	0.538	0.573	0.609
100	0.646	0.683	0.720	0.758	0.795	0.834	0.872	0.911	0.950	0.990
150	1.029	1.069	1.110	1.150	1.191	1.232	1.273	1.315	1.357	1.399
200	1.441	1.483	1.526	1.569	1.612	1.655	1.698	1.742	1.786	1.829
250	1.874	1.918	1.962	2.007	2.052	2.096	2.141	2.187	2.232	2.277
300	2.323	2.369	2.415	2.461	2.507	2.553	2.599	2.646	2.692	2.739
350	2.786	2.833	2.880	2.927	2.974	3.021	3.069	3.116	3.164	3.212
400	3.259	3.307	3.355	3.403	3.451	3.500	3.548	3.596	3.645	3.694
450	3.742	3.791	3.840	3.889	3.938	3.987	4.036	4.085	4.134	4.184
500	4.233	4.283	4.332	4.382	4.432	4.482	4.532	4.582	4.632	4.682
550	4.732	4.782	4.833	4.883	4.934	4.984	5.035	5.086	5.137	5.188
600	5.239	5.290	5.341	5.392	5.443	5.495	5.546	5.598	5.649	5.701
650	5.753	5.805	5.857	5.909	5.961	6.013	6.065	6.118	6.170	6.223
700	6.275	6.328	6.381	6.434	6.486	6.539	6.593	6.646	6.699	6.752
750	6.806	6.859	6.913	6.967	7.020	7.074	7.128	7.182	7.236	7.291
800	7.345	7.399	7.454	7.508	7.563	7.618	7.673	7.728	7.783	7.838
850	7.893	7.948	8.003	8.059	8.114	8.170	8.226	8.281	8.337	8.393
900	8.449	8.505	8.562	8.618	8.674	8.731	8.787	8.844	8.900	8.957
950	9.014	9.071	9.128	9.185	9.242	9.300	9.357	9.414	9.472	9.529
1000	9.587	9.645	9.703	9.761	9.819	9.877	9.935	9.993	10.051	10.110
1050	10.168	10.227	10.285	10.344	10.403	10.461	10.520	10.579	10.638	10.697
1100	10.757	10.816	10.875	10.934	10.994	11.053	11.113	11.172	11.232	11.291
1150	11.351	11.411	11.471	11.531	11.590	11.650	11.710	11.770	11.830	11.890
1200	11.951	12.011	12.071	12.131	12.191	12.252	12.312	12.372	12.433	12.493
1250	12.554	12.614	12.675	12.735	12.796	12.856	12.917	12.977	13.038	13.098
1300	13.159	13.220	13.280	13.341	13.402	13.462	13.523	13.584	13.644	13.705
1350	13.766	13.826	13.887	13.948	14.009	14.069	14.130	14.191	14.251	14.312
1400	14.373	14.433	14.494	14.554	14.615	14.676	14.736	14.797	14.857	14.918
1450	14.978	15.039	15.099	15.160	15.220	15.280	15.341	15.401	15.461	15.521
1500	15.582	15.642	15.702	15.762	15.822	15.882	15.942	16.002	16.062	16.122
1550	16.182	16.241	16.301	16.361	16.420	16.480	16.539	16.599	16.658	16.718
1600	16.777	16.836	16.895	16.954	17.013	17.072	17.131	17.190	17.249	17.308
1650	17.366	17.425	17.483	17.542	17.600	17.658	17.717	17.775	17.832	17.890
1700	17.947	18.004	18.061	18.118	18.174	18.230	18.285	18.341	18.395	18.449
1750	18.503	18.557	18.609	18.661

Type B: PLATINUM/30% RHODIUM-PLATINUM/6% RHODIUM

	0	5	10	15	20	25	30	35	40	45
0	0.000	-0.001	-0.002	-0.002	-0.003	-0.002	-0.002	-0.001	0.000	0.001
50	0.002	0.004	0.006	0.009	0.011	0.014	0.017	0.021	0.025	0.029
100	0.033	0.038	0.043	0.048	0.053	0.059	0.065	0.072	0.078	0.085
150	0.092	0.099	0.107	0.115	0.123	0.132	0.141	0.150	0.159	0.168
200	0.178	0.188	0.199	0.209	0.220	0.231	0.243	0.255	0.267	0.279
250	0.291	0.304	0.317	0.330	0.344	0.358	0.372	0.386	0.401	0.416
300	0.431	0.446	0.462	0.478	0.494	0.510	0.527	0.544	0.561	0.578
350	0.596	0.614	0.632	0.650	0.669	0.688	0.707	0.727	0.746	0.766
400	0.787	0.807	0.828	0.849	0.870	0.891	0.913	0.935	0.957	0.979
450	1.002	1.025	1.048	1.071	1.095	1.119	1.143	1.167	1.192	1.217
500	1.242	1.267	1.293	1.318	1.344	1.371	1.397	1.424	1.451	1.478
550	1.505	1.533	1.561	1.589	1.617	1.646	1.675	1.704	1.733	1.762
600	1.792	1.822	1.852	1.882	1.913	1.944	1.975	2.006	2.037	2.069
650	2.101	2.133	2.165	2.197	2.230	2.263	2.296	2.329	2.363	2.397
700	2.431	2.465	2.499	2.534	2.569	2.604	2.639	2.674	2.710	2.746
750	2.782	2.818	2.854	2.891	2.928	2.965	3.002	3.040	3.078	3.116
800	3.154	3.192	3.230	3.269	3.308	3.347	3.386	3.426	3.466	3.506
850	3.546	3.586	3.626	3.667	3.708	3.749	3.790	3.832	3.873	3.915
900	3.957	3.999	4.041	4.084	4.127	4.170	4.213	4.256	4.299	4.343
950	4.387	4.431	4.475	4.519	4.564	4.608	4.653	4.698	4.743	4.789
1000	4.834	4.880	4.926	4.972	5.018	5.065	5.111	5.158	5.205	5.252
1050	5.299	5.346	5.394	5.441	5.489	5.537	5.585	5.634	5.682	5.731
1100	5.780	5.828	5.878	5.927	5.976	6.026	6.075	6.125	6.175	6.225
1150	6.276	6.326	6.377	6.427	6.478	6.529	6.580	6.632	6.683	6.735
1200	6.786	6.838	6.890	6.942	6.995	7.047	7.100	7.152	7.205	7.258
1250	7.311	7.364	7.417	7.471	7.524	7.578	7.632	7.686	7.740	7.794
1300	7.848	7.903	7.957	8.012	8.066	8.121	8.176	8.231	8.286	8.342
1350	8.397	8.453	8.508	8.564	8.620	8.675	8.731	8.787	8.844	8.900
1400	8.956	9.013	9.069	9.126	9.182	9.239	9.296	9.353	9.410	9.467
1450	9.524	9.581	9.639	9.696	9.753	9.811	9.868	9.926	9.984	10.041
1500	10.099	10.157	10.215	10.273	10.331	10.389	10.447	10.505	10.563	10.621
1550	10.679	10.738	10.796	10.854	10.913	10.971	11.029	11.088	11.146	11.205
1600	11.263	11.321	11.380	11.438	11.497	11.555	11.614	11.673	11.731	11.790
1650	11.848	11.907	11.965	12.024	12.082	12.141	12.199	12.257	12.316	12.374
1700	12.433	12.491	12.549	12.607	12.666	12.724	12.782	12.840	12.898	12.956
1750	13.014	13.072	13.130	13.188	13.246	13.304	13.361	13.419	13.476	13.534
1800	13.591	13.649	13.706	13.763	13.820

Type E: CHROMEL-CONSTANTAN

	0	5	10	15	20	25	30	35	40	45
-300							-9.835	-9.821	-9.797	-9.762
-250	-9.718	-9.666	-9.604	-9.534	-9.455	-9.368	-9.274	-9.172	-9.063	-8.947
-200	-8.825	-8.696	-8.561	-8.420	-8.273	-8.121	-7.963	-7.800	-7.632	-7.458
-150	-7.279	-7.096	-6.907	-6.714	-6.516	-6.314	-6.107	-5.896	-5.681	-5.461
-100	-5.237	-5.009	-4.777	-4.542	-4.302	-4.058	-3.811	-3.561	-3.306	-3.048
-50	-2.787	-2.523	-2.255	-1.984	-1.709	-1.432	-1.152	-0.868	-0.582	-0.292
0	0.000	0.294	0.591	0.890	1.192	1.495	1.801	2.109	2.420	2.733
50	3.048	3.365	3.685	4.006	4.330	4.656	4.985	5.315	5.648	5.982
100	6.319	6.658	6.998	7.341	7.685	8.031	8.379	8.729	9.081	9.434
150	9.789	10.145	10.503	10.863	11.224	11.587	11.951	12.317	12.684	13.052
200	13.421	13.792	14.164	14.537	14.912	15.287	15.664	16.041	16.420	16.800
250	17.181	17.562	17.945	18.328	18.713	19.098	19.484	19.871	20.259	20.647
300	21.036	21.426	21.817	22.208	22.600	22.993	23.386	23.780	24.174	24.569
350	24.964	25.360	25.757	26.154	26.552	26.950	27.348	27.747	28.146	28.546
400	28.946	29.346	29.747	30.148	30.550	30.952	31.354	31.756	32.159	32.562
450	32.965	33.368	33.772	34.175	34.579	34.983	35.387	35.792	36.196	36.601
500	37.005	37.410	37.815	38.220	38.624	39.029	39.434	39.839	40.243	40.648
550	41.053	41.457	41.862	42.266	42.671	43.075	43.479	43.883	44.286	44.690
600	45.093	45.497	45.900	46.302	46.705	47.107	47.509	47.911	48.313	48.715
650	49.116	49.517	49.917	50.318	50.718	51.118	51.517	51.916	52.315	52.714
700	53.112	53.510	53.908	54.306	54.703	55.100	55.497	55.893	56.289	56.685
750	57.080	57.475	57.870	58.265	58.659	59.053	59.446	59.839	60.232	60.625
800	61.017	61.409	61.801	62.192	62.583	62.974	63.364	63.754	64.144	64.533
850	64.922	65.310	65.698	66.086	66.473	66.860	67.246	67.632	68.017	68.402
900	68.787	69.171	69.554	69.937	70.319	70.701	71.082	71.463	71.844	72.223
950	72.603	72.981	73.360	73.738	74.115	74.492	74.869	75.245	75.621	75.997
1000	76.373

Type R: PLATINUM/13% RHODIUM-PLATINUM

	0	5	10	15	20	25	30	35	40	45
-50	-0.226	-0.208	-0.188	-0.167	-0.145	-0.123	-0.100	-0.076	-0.051	-0.026
0	0.000	0.027	0.054	0.082	0.111	0.141	0.171	0.201	0.232	0.264