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4, 5 and 6 Band Resistor Color Code Calculator

Resistor Color Code calculator – calculate corresponding value of a given resistor color marking

To use the resistor color code calculator click on the dropdown box starting from the left and select the corresponding color, black on the first marking is disabled by default. For the 4 band resistor calculator the third band is the multiplier and the fourth is the resistor tolerance. For the 5 band resistor calculator the 4th marking is the multiplier while the 5th marking is the tolerance, for 6 band resistor calculator the 4th marking is the multiplier, the 5th is the tolerance and the six marking is the temperature coefficient. For additional information on reading resistor color coding check out how to read resistor color code on this site. For the output value check out standard EIA Resistor value and standard value resistors.

Note:This Resistor Color Code Calculator requires that your browser JavaScript be enabled, if your browser Javascript is disabled this Resistor Color Code Calculator will not work.

4 BAND RESISTOR COLOR CODE AND TOLERANCE CALCULATOR

 

6 BAND RESISTOR COLOR CODE AND TOLERANCE CALCULATOR

The 6th band marking is the Temperature Coefficient in ppm/degreeC of a resistor which represent the amount of resistance value that will change with temperature

 

Standard Resistors Value

Table shows a list of Standard Resistor Value in plus or minus (0.5%) tolerance, (10%) tolerance, (20%) tolerance and (20%) tolerance

Standard Resistor Value (±0.5%) tolerance
Ω Ω Ω
             
1.0 10 100 1.0 10 100 1.0
1.1 11 110 1.1 11 110 1.1
1.2 12 120 1.2 12 120 1.2
1.3 13 130 1.3 13 130 1.3
1.5 15 150 1.5 15 150 1.5
1.6 16 160 1.6 16 160 1.6
1.8 18 180 1.8 18 180 1.8
2.0 20 200 2.0 20 200 2.0
2.2 22 220 2.2 22 220 2.2
2.4 24 240 2.4 24 240 2.4
2.7 27 270 2.7 27 270 2.7
3.0 30 300 3.0 30 300 3.0
3.3 33 330 3.3 33 330 3.3
3.6 36 360 3.6 36 360 3.6
3.9 39 390 3.9 39 390 3.9
4.3 43 430 4.3 43 430 4.3
4.7 47 470 4.7 47 470 4.7
5.1 51 510 5.1 51 510 5.1
5.6 56 560 5.6 56 560 5.6
6.2 62 620 6.2 62 620 6.2
6.8 68 680 6.8 68 680 6.8
7.5 75 750 7.5 75 750 7.5
8.2 82 820 8.2 82 820 8.2
9.1 91 910 9.1 91 910 9.1

 

Standard Resistor Value (±10%) tolerance
Ω Ω
10 100 1 10 100
12 120 1.2 12 120
15 150 1.5 15 150
18 180 1.8 18 180
22 220 2.2 22 220
27 270 2.7 27 270
33 330 3.3 33 330
39 390 3.9 39 390
47 470 4.7 47 470
56 560 5.6 56 560
68 680 6.8 68 680
82 820 8.2 82 820
Standard Resistor Value (±20%) tolerance
Ω Ω
10 100 1 10 100
15 150 1.5 15 150
22 220 2.2 22 220
33 330 3.3 33 330
47 470 4.7 47 470
68 680 6.8 68 680
Standard Resistor Value (±20%) tolerance
Ω Ω
10 100 1 10 100
15 150 1.5 15 150
22 220 2.2 22 220
33 330 3.3 33 330
47 470 4.7 47 470
68 680 6.8 68 680

How To Read Resistor Color Coding

4 band resistor color code calculator5 band resistor color coding

Because carbon resistors are small physically, they are color-coded to indicate their resistance value in ohms(Ω).  The basis of this system is the use of colors for numerical values as listed in table 1-1 and 1-2.

In memorizing this colors, remember that the dark color, black and brown correspond to the lowest number, zero and one through lighter colors, to white for nine.  The color coding is standardized by the Electronics Industries Association (EIA).

RESISTANCE COLOR BANDS.

This code is the most common system used for color coding insulated carbon resistors having axial leads, as shown above.  Color band are printed at one end of the insulating body.  Reading from left to right, the first color band close to the edge indicate the first digit in the numerical value of the resistance.  The second band is the second digit.  The Third band is the decimal multiplier giving the number of zero after the two digits.  The resulting number is the resistance in ohms.

As an example as shown in the table the first stripe is Brown for 1, the second stripe is Black for 0 the Green multiplier mean add five zeroes to 10 therefore this resistance value is 10 x 105 or 1,000,000 Ω or equivalent to 1MΩ

If the thirds stripe is black means “do not add any zero to first two figures so if the color is Brown, Black and Black stripes the resistance value would be 10Ω.

Resistors under 10 Ω have third stripe of gold or silver which are fractional decimal multiplier for instance if the stripes of the resistor are yellow, violet and gold multiply the first two digit by 0.1 and if the third stripe is silver multiply by 0.01, so for instance if the stripe of the resistor are yellow, violet and gold the resistance would be 47 X 0.1 or 4.7Ω if the third stripe is silver the resistance would be 47 X 0.01 or 0.47Ω.

Gold and silver are fractional multipliers only in the third stripe.  However gold and silver are most often used as fourth stripe to indicate how accurate the resistance value is.

RESISTOR TOLERANCE.

The amount by which the actual resistance can be different from the color coded value is the tolerance, usually given in percent.  For instance, a 100,000Ω or 100KΩ resistor with ±10 percent tolerance can have a resistance 10 percent above or below its indicated resistance so when check from multi-meter the reading could range from 90,000Ω up to 110,000Ω value.  The inexact value of carbon-resistors is a disadvantage resulting from their economical construction, but in most circuits 5 to 10 percent variation in resistance can be tolerated.

 

 

Standard EIA Resistor Value

Table of Standard EIA Resistor Value
(Electronic Industries Association)
E6 (±20%) E12 (±10%) E24 (±5%) E48 (±2%) E96 (±1%) E192 (±0.5) E6 (±20%) E12 (±10% E24 (±5%) E48 (±2%) E96 (±1%) E192 (±0.5)
100 100 100 100 100 100 100 120 130 147 147 147
101 149
102 102 150 150 150 150 150
104 152
105 105 105 154 154 154
106 156
107 107 158 158
109 160 160
110 110 110 110 162 162 162
111 164
113 113 165 165
114 167
115 115 115 169 169 169
117 172
118 118 174 174
120 120 120 176
121 121 121 178 178 178
123 180 180 180
124 124 182 182
126 184
127 127 127 187 187 187
129 189
130 130 130 191 191
132 193
133 133 133 196 196 196
135 198
137 137 200 200 200
138 203
140 140 140 205 205 205
142 208
143 143 210 210
145 213
150 180 200 215 215 215 220 270 300 316 316 316
218 320
220 220 220 221 221 324 324
223 328
226 226 226 330 330 330 332 332 332
229 336
232 232 340 340
234 344
237 237 237 348 348 348
240 240 352
243 243 357 357
246 360 361
249 249 249 365 365 365
252 370
255 255 374 374
258 379
261 261 261 383 383 383
264 388
267 267 390 390 392 392
270 270 271 397
274 274 274 402 402 402
277 407
280 280 412 412
284 417
287 287 287 422 422 422
291 427
294 294 430 432 432
298 437
300 301 301 301 442 442 442
305 448
309 309 453 453
312 459
470 390 430 464 464 464 680 680 680 681 681 681
470 470 470 690
475 475 698 698
481 706
487 487 487 715 715 715
493 723
499 499 732 732
505 741
510 511 511 511 750 750 750 750
517 759
523 523 768 768
530 777
536 536 536 787 787 787
542 796
549 549 806 806
556 816
560 560 562 562 562 820 820 825 825 825
569 835
576 576 845 845
583 856
590 590 590 866 866 866
597 876
604 604 887 887
612 898
619 619 619 909 909 909
620 626 910 920
634 634 931 931
642 942
649 649 649 953 953 953
657 965
665 665 976 976
673 998

Standard Wire Gauge

Wire Number British Wire Gauge (SWG) American Wire Gauge (SWG)
Gauge No. Inches Equivalent in mm Inches Equivalent in mm Ohms per 1000 ft. of copper wire at 25C
7/0 0.5000 12.700
6/0 0.4640 11.786 0.5800 14.7320
5/0 0.4320 10.973 0.5165 13.1191
4/0 0.4000 10.160 0.4600 11.6840
3/0 0.3720 9.449 0.4096 10.4049
2/0 0.3480 8.839 0.3648 9.2658
1/0 0.3240 8.230 0.3249 8.2515
1 0.3000 7.620 0.2893 7.3481 0.1264
2 0.2760 7.010 0.2576 6.5437 0.1593
3 0.2520 6.401 0.2294 5.8273 0.2009
4 0.2320 5.893 0.2043 5.1892 0.2533
5 0.2120 5.385 0.1819 4.6203 0.3195
6 0.1920 4.877 0.1620 4.1148 0.4028
7 0.1760 4.470 0.1443 3.6652 0.5080
8 0.1600 4.064 0.1285 3.2639 0.6405
9 0.1440 3.658 0.1144 2.9058 0.8077
10 0.1280 3.251 0.1019 2.5883 1.0180
11 0.1160 2.946 0.0907 2.3038 1.2840
12 0.1040 2.642 0.0808 2.0523 1.6190
13 0.0920 2.337 0.0720 1.8288 2.0420
14 0.0800 2.032 0.0641 1.6281 2.5750
15 0.0720 1.829 0.0571 1.4503 3.2470
16 0.0640 1.626 0.0508 1.2903 4.0940
17 0.0560 1.422 0.0453 1.1506 5.1630
18 0.0480 1.219 0.0403 1.0236 6.5100
19 0.0400 1.016 0.0359 0.9119 8.2100
20 0.0360 0.914 0.0320 0.8128 10.350
21 0.0320 0.813 0.0285 0.7239 13.050
22 0.0280 0.711 0.0253 0.6426 16.460
23 0.0240 0.610 0.0226 0.5740 20.760
24 0.0220 0.599 0.0201 0.5105 26.170
25 0.0200 0.508 0.0179 0.4547 33.000
26 0.0180 0.457 0.0159 0.4039 41.620
27 0.0164 0.417 0.0142 0.3607 52.480
28 0.0148 0.376 0.0126 0.3200 66.170
29 0.0136 0.345 0.0113 0.2870 83.440
30 0.0124 0.315 0.0100 0.2540 105.20
31 0.0116 0.295 0.0089 0.2261 132.70
32 0.0108 0.274 0.0080 0.2032 167.30
33 0.0100 0.254 0.0071 0.1803 211.00
34 0.0092 0.234 0.0063 0.1600 266.00
35 0.0084 0.213 0.0056 0.1422 335.00
36 0.0076 0.193 0.0050 0.1270 423.00
37 0.0068 0.173 0.0045 0.1143 533.40
38 0.0060 0.152 0.0040 0.1016 672.60
39 0.0052 0.132 0.0035 0.0889 848.10
40 0.0048 0.122 0.0031 0.0787 1069.0
41 0.0044 0.112 0.0028 0.0711
42 0.0040 0.102 0.0025 0.0635
43 0.0036 0.091 0.0022 0.0559
44 0.0032 0.081 0.0020 0.0508
45 0.0028 0.071 0.0018 0.0457
46 0.0024 0.061 0.0016 0.0406
47 0.0020 0.051 0.0014 0.0356
48 0.0016 0.041 0.0012 0.0305
49 0.0012 0.031 0.0011 0.0279
50 0.0010 0.026 0.0010 0.0254
51 0.0009 0.0224
52 0.0008 0.0198
53 0.0007 0.0178
54 0.0006 0.0157
55 0.0006 0.0140
56 0.0004 0.0125

STANDARD WIRE GAGE SIZES

The table shows a list of standard wire sizes in the system known as the American Wire Gauge (AWG). The gage numbers specify the size of round wire in terms of its diameter and cross-sectional circular area.

NOTES:

1. As the gage number increases from 1 upward, the diameter and circular area decreases. Higher gage numbers indicate thinner wire sizes.
2. The circular area doubles for every three gage sizes. For example, gage number 10 wire has an approximately twice the area of gage no. 13 wire.
3. The higher the gage number and the thinner the wire, the greater the resistance of the wire for any given length.

CIRCULAR MILS.

The cross sectional area of a round wire is measured in circular mils.   A mil is a one-thousand of an inch, or 0.001 in. One circular mil is the cross-sectional area of a wire with a diameter of 1 mil.   The number of circular mils in any circular area is equal to the square of the diameter in mils.

TYPES OF WIRE CONDUCTORS

Most of wire conductors are copper, but sometimes silver and aluminum are also used, copper is tinned with a thin coating of solder, which gives a silvery appearance, the wire can be solid or stranded.  Stranded wire is more flexible and less likely to break open.  Sizes for stranded wire are equivalent to the sum of the areas for the individual strands. For instance, two strands of no. 30 wire are equivalent to no. 27 solid wire.