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Standard Resistor Values
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Resistors are one of the four fundamental types of passive electronic components; the other three are the
inductor, the
capacitor, and the
memristor. The basic unit of
resistance is the ohm (Ω).
Standard base resistor values are given in the following tables for the most commonly used tolerances (1%,
5%, 10%), along with typically available resistance ranges.
To determine values other than the base, multiply the base value by 10; 100; 1,000; or 10,000.
| Example: |
Calculations indicate the need for a 355 kΩ resistor and a tolerance of 1% . |
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Look in the 1% table and select the 35.7 value (the nearest available standard value). Multiply by 10 000
to convert to 357 kΩ. |
1% Standard Values
Decade multiples are available
from 10.0 Ω through 1.00 MΩ
(also 1.10 MΩ, 1.20 MΩ, 1.30 MΩ, 1.50 MΩ, 1.60 MΩ, 1.80 MΩ, 2.00 MΩ and 2.20
MΩ) |
| 10.0 |
10.2 |
10.5 |
10.7 |
11.0 |
11.3 |
11.5 |
11.8 |
12.1 |
12.4 |
12.7 |
13.0 |
| 13.3 |
13.7 |
14.0 |
14.3 |
14.7 |
15.0 |
15.4 |
15.8 |
16.2 |
16.5 |
16.9 |
17.4 |
| 17.8 |
18.2 |
18.7 |
19.1 |
19.6 |
20.0 |
20.5 |
21.0 |
21.5 |
22.1 |
22.6 |
23.2 |
| 23.7 |
24.3 |
24.9 |
25.5 |
26.1 |
26.7 |
27.4 |
28.0 |
28.7 |
29.4 |
30.1 |
30.9 |
| 31.6 |
32.4 |
33.2 |
34.0 |
34.8 |
35.7 |
36.5 |
37.4 |
38.3 |
39.2 |
40.2 |
41.2 |
| 42.2 |
43.2 |
44.2 |
45.3 |
46.4 |
47.5 |
48.7 |
49.9 |
51.1 |
52.3 |
53.6 |
54.9 |
| 56.2 |
57.6 |
59.0 |
60.4 |
61.9 |
63.4 |
64.9 |
66.5 |
68.1 |
69.8 |
71.5 |
73.2 |
| 75.0 |
76.8 |
78.7 |
80.6 |
82.5 |
84.5 |
86.6 |
88.7 |
90.9 |
93.1 |
95.3 |
97.6 |
 Standard
resistor values are calculated using the simple formula given below. Round the results to the proper number of
significant figures (3 for 1% and 2%, 2 for 5% and 10%). As the chart at the right shows
(created in Excel), plotting the values on a logarithmic scale results in a straight line.
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5% Standard Values
Decade multiples are available from 10 Ω through 22 MΩ
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| 10 |
11 |
12 |
13 |
15 |
16 |
18 |
20 |
22 |
24 |
27 |
30 |
| 33 |
36 |
39 |
43 |
47 |
51 |
56 |
62 |
68 |
75 |
82 |
91 |
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10% Standard Values
Decade multiples are available from 10 Ω through 1 MΩ
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| 10 |
12 |
15 |
18 |
22 |
27 |
33 |
39 |
47 |
56 |
68 |
82 |
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Kirt
