Curve 44

Curve 44 1 °C Rt/R25 Ratio Table

Updated Nov 5, 2026

Download PDF R/T Specifications Calculator (XLSX)

North Star Sensors Curve 44

1 °C Ratio Table

To calculate the resistance value at a specific temperature point, multiply the corresponding Rt/R25 ratio by the resistance at 25 °C.

°C	Rt/R25
-50	67.011
-49	62.412
-48	58.158
-47	54.221
-46	50.576
-45	47.198
-44	44.068
-43	41.165
-42	38.472
-41	35.972
-40	33.650
-39	31.492
-38	29.487
-37	27.621
-36	25.885
-35	24.269
-34	22.764
-33	21.362
-32	20.055
-31	18.835
-30	17.698
-29	16.636
-28	15.644
-27	14.718
-26	13.852
-25	13.042
-24	12.284
-23	11.575
-22	10.912
-21	10.290
-20	9.7075
-19	9.1615
-18	8.6494
-17	8.1691
-16	7.7183
-15	7.2951
-14	6.8975
-13	6.5241
-12	6.1730
-11	5.8429
-10	5.5324

°C	Rt/R25
-10	5.5324
-9	5.2403
-8	4.9652
-7	4.7063
-6	4.4623
-5	4.2324
-4	4.0157
-3	3.8114
-2	3.6186
-1	3.4367
0	3.2651
1	3.1030
2	2.9499
3	2.8053
4	2.6686
5	2.5393
6	2.4171
7	2.3014
8	2.1919
9	2.0883
10	1.9901
11	1.8972
12	1.8090
13	1.7255
14	1.6463
15	1.5712
16	1.5000
17	1.4323
18	1.3681
19	1.3072
20	1.2493
21	1.1942
22	1.1420
23	1.0922
24	1.0450
25	1.0000
26	0.95722
27	0.91650
28	0.87774
29	0.84082
30	0.80567

°C	Rt/R25
30	0.80567
31	0.77217
32	0.74025
33	0.70982
34	0.68081
35	0.65314
36	0.62675
37	0.60156
38	0.57752
39	0.55457
40	0.53265
41	0.51172
42	0.49172
43	0.47261
44	0.45435
45	0.43689
46	0.42019
47	0.40421
48	0.38893
49	0.37431
50	0.36031
51	0.34687
52	0.33400
53	0.32168
54	0.30988
55	0.29857
56	0.28773
57	0.27735
58	0.26739
59	0.25784
60	0.24869
61	0.23990
62	0.23147
63	0.22339
64	0.21562
65	0.20817
66	0.20101
67	0.19413
68	0.18753
69	0.18118
70	0.17508

°C	Rt/R25
70	0.17508
71	0.16922
72	0.16358
73	0.15816
74	0.15295
75	0.14793
76	0.14310
77	0.13846
78	0.13399
79	0.12969
80	0.12554
81	0.12155
82	0.11771
83	0.11400
84	0.11044
85	0.10700
86	0.10368
87	0.10048
88	0.097402
89	0.094430
90	0.091563
91	0.088797
92	0.086128
93	0.083552
94	0.081066
95	0.078666
96	0.076348
97	0.074110
98	0.071948
99	0.069860
100	0.067842
101	0.065900
102	0.064023
103	0.062209
104	0.060454
105	0.058757
106	0.057116
107	0.055528
108	0.053992
109	0.052505
110	0.051066

°C	Rt/R25
110	0.051066
111	0.049673
112	0.048325
113	0.047020
114	0.045755
115	0.044531
116	0.043345
117	0.042196
118	0.041083
119	0.040004
120	0.038958
121	0.037945
122	0.036962
123	0.036010
124	0.035086
125	0.034190
126	0.033321
127	0.032478
128	0.031660
129	0.030866
130	0.030096
131	0.029349
132	0.028623
133	0.027919
134	0.027235
135	0.026570
136	0.025925
137	0.025299
138	0.024690
139	0.024099
140	0.023524
141	0.022966
142	0.022423
143	0.021896
144	0.021383
145	0.020884
146	0.020400
147	0.019928
148	0.019470
149	0.019024
150	0.018590