TABLE 10 Type K Thermocouple ¾ thermoelectric voltage as a function of
temperature (°F); reference junctions at 32 °F
°F 0 1 2 3 4 5 6 7 8 9 10 °F
Thermoelectric Voltage in Millivolts
°F 0 1 2 3 4 5 6 7 8 9 10 °F
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K
°F
50
0.397
0.419
0.441
0.463
0.486
0.508
0.530
0.552
0.575
0.597
0.619
50
60
0.619
0.642
0.664
0.686
0.709
0.731
0.753
0.776
0.798
0.821
0.843
60
70
0.843
0.865
0.888
0.910
0.933
0.955
0.978
1.000
1.023
1.045
1.068
70
80
1.068
1.090
1.113
1.136
1.158
1.181
1.203
1.226
1.249
1.271
1.294
80
90
1.294
1.316
1.339
1.362
1.384
1.407
1.430
1.453
1.475
1.498
1.521
90
100
1.521
1.543
1.566
1.589
1.612
1.635
1.657
1.680
1.703
1.726
1.749
100
110
1.749
1.771
1.794
1.817
1.840
1.863
1.886
1.909
1.931
1.954
1.977
110
120
1.977
2.000
2.023
2.046
2.069
2.092
2.115
2.138
2.161
2.184
2.207
120
130
2.207
2.230
2.253
2.276
2.298
2.321
2.344
2.367
2.390
2.413
2.436
130
140
2.436
2.459
2.483
2.506
2.529
2.552
2.575
2.598
2.621
2.644
2.667
140
150
2.667
2.690
2.713
2.736
2.759
2.782
2.805
2.828
2.851
2.874
2.897
150
160
2.897
2.920
2.944
2.967
2.990
3.013
3.036
3.059
3.082
3.105
3.128
160
170
3.128
3.151
3.174
3.197
3.220
3.244
3.267
3.290
3.313
3.336
3.359
170
180
3.359
3.382
3.405
3.428
3.451
3.474
3.497
3.520
3.544
3.567
3.590
180
190
3.590
3.613
3.636
3.659
3.682
3.705
3.728
3.751
3.774
3.797
3.820
190
200
3.820
3.843
3.866
3.889
3.912
3.935
3.958
3.981
4.004
4.027
4.050
200
210
4.050
4.073
4.096
4.119
4.142
4.165
4.188
4.211
4.234
4.257
4.280
210
220
4.280
4.303
4.326
4.349
4.372
4.395
4.417
4.440
4.463
4.486
4.509
220
230
4.509
4.532
4.555
4.578
4.601
4.623
4.646
4.669
4.692
4.715
4.738
230
240
4.738
4.760
4.783
4.806
4.829
4.852
4.874
4.897
4.920
4.943
4.965
240
250
4.965
4.988
5.011
5.034
5.056
5.079
5.102
5.124
5.147
5.170
5.192
250
260
5.192
5.215
5.238
5.260
5.283
5.306
5.328
5.351
5.374
5.396
5.419
260
270
5.419
5.441
5.464
5.487
5.509
5.532
5.554
5.577
5.599
5.622
5.644
270
280
5.644
5.667
5.690
5.712
5.735
5.757
5.779
5.802
5.824
5.847
5.869
280
290
5.869
5.892
5.914
5.937
5.959
5.982
6.004
6.026
6.049
6.071
6.094
290
300
6.094
6.116
6.138
6.161
6.183
6.205
6.228
6.250
6.272
6.295
6.317
300
310
6.317
6.339
6.362
6.384
6.406
6.429
6.451
6.473
6.496
6.518
6.540
310
320
6.540
6.562
6.585
6.607
6.629
6.652
6.674
6.696
6.718
6.741
6.763
320
330
6.763
6.785
6.807
6.829
6.852
6.874
6.896
6.918
6.941
6.963
6.985
330
340
6.985
7.007
7.029
7.052
7.074
7.096
7.118
7.140
7.163
7.185
7.207
340
350
7.207
7.229
7.251
7.273
7.296
7.318
7.340
7.362
7.384
7.407
7.429
350
360
7.429
7.451
7.473
7.495
7.517
7.540
7.562
7.584
7.606
7.628
7.650
360
370
7.650
7.673
7.695
7.717
7.739
7.761
7.783
7.806
7.828
7.850
7.872
370
380
7.872
7.894
7.917
7.939
7.961
7.983
8.005
8.027
8.050
8.072
8.094
380
390
8.094
8.116
8.138
8.161
8.183
8.205
8.227
8.250
8.272
8.294
8.316
390
400
8.316
8.338
8.361
8.383
8.405
8.427
8.450
8.472
8.494
8.516
8.539
400
410
8.539
8.561
8.583
8.605
8.628
8.650
8.672
8.694
8.717
8.739
8.761
410
420
8.761
8.784
8.806
8.828
8.851
8.873
8.895
8.918
8.940
8.962
8.985
420
430
8.985
9.007
9.029
9.052
9.074
9.096
9.119
9.141
9.163
9.186
9.208
430
440
9.208
9.231
9.253
9.275
9.298
9.320
9.343
9.365
9.388
9.410
9.432
440
450
9.432
9.455
9.477
9.500
9.522
9.545
9.567
9.590
9.612
9.635
9.657
450
460
9.657
9.680
9.702
9.725
9.747
9.770
9.792
9.815
9.837
9.860
9.882
460
470
9.882
9.905
9.927
9.950
9.973
9.995
10.018
10.040
10.063
10.086
10.108
470
480
10.108
10.131
10.153
10.176
10.199
10.221
10.244
10.267
10.289
10.312
10.334
480
490
10.334
10.357
10.380
10.402
10.425
10.448
10.471
10.493
10.516
10.539
10.561
490
500
10.561
10.584
10.607
10.629
10.652
10.675
10.698
10.720
10.743
10.766
10.789
500
510
10.789
10.811
10.834
10.857
10.880
10.903
10.925
10.948
10.971
10.994
11.017
510
520
11.017
11.039
11.062
11.085
11.108
11.131
11.154
11.176
11.199
11.222
11.245
520
530
11.245
11.268
11.291
11.313
11.336
11.359
11.382
11.405
11.428
11.451
11.474
530
540
11.474
11.497
11.519
11.542
11.565
11.588
11.611
11.634
11.657
11.680
11.703
540