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Welcome to our Resources page, where you can find helpful information on wire gauge sizes, and easy-to-read wire size charts.

Our wire guides are organized by wire type. Click on the tabs below to see wire size charts for magnet wire, hook up wire and uninsulated wire. As well as wire charts, you’ll also find helpful product guides for raw materials and accessories, including our wire terminals and heat shrink tubing.

Click on a wire guide PDF to view, save, or print it. Don’t forget to bookmark this page to easily reference our wire size charts in the future.

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Copper and Magnet Wire Data Chart

View this table as a  PDF.

Solid Copper Wire & Magnet Wire Data by AWG
AWGBare DiameterBare AreaDC ResistanceMaximum Current 1Maximum Frequency 2Single Build Dia.Heavy Build Dia.
inmmcirc. milsmm2Ω/1000 ftΩ/kminmminmm
0000 (4/0) 0.4600 11.684 211.2 kcmil 107.0 0.0490 0.1607 302 A 125 Hz
000 (3/0) 0.4096 10.404 167.7 kcmil 85.0 0.0618 0.2027 239 A 160 Hz
00 (2/0) 0.3648 9.266 133.0 kcmil 67.4 0.0779 0.2555 190 A 200 Hz
0 (1/0) 0.3249 8.252 105.6 kcmil 53.5 0.0983 0.3224 150 A 250 Hz
1 0.2893 7.348 83.68 kcmil 42.4 0.1239 0.4064 119 A 325 Hz
2 0.2576 6.543 66.31 kcmil 33.6 0.1563 0.5127 94 A 410 Hz 0.2611 6.632
3 0.2294 5.827 52.69 kcmil 26.7 0.1970 0.6462 75 A 500 Hz 0.2330 5.918
4 0.2043 5.189 41.84 kcmil 21.2 0.2485 0.8151 60 A 650 Hz 0.2079 5.281
5 0.1819 4.620 33.16 kcmil 16.8 0.3133 1.0276 47 A 810 Hz 0.1856 4.714
6 0.1620 4.115 26.25 kcmil 13.3 0.3951 1.2959 37 A 1.10 kHz 0.1648 4.186 0.1656 4.206
7 0.1443 3.665 20.72 kcmil 10.5 0.4982 1.6341 30 A 1.30 kHz 0.1469 3.731 0.1478 3.754
8 0.1285 3.264 16.52 kcmil 8.37 0.6282 2.0605 24 A 1.65 kHz 0.1302 3.307 0.1320 3.353
9 0.1144 2.906 13.08 kcmil 6.63 0.7921 2.5981 19 A 2.05 kHz 0.1162 2.951 0.1179 2.995
10 0.1019 2.588 10.38 kcmil 5.26 0.9989 3.2764 15 A 2.60 kHz 0.1037 2.634 0.1054 2.677
11 0.0907 2.304 8.230 kcmil 4.17 1.260 4.1328 12 A 3.20 kHz 0.0925 2.350 0.0942 2.393
12 0.0808 2.052 6.532 kcmil 3.31 1.588 5.2086 9.3 A 4.15 kHz 0.0825 2.096 0.0842 2.139
13 0.0720 1.829 5.171 kcmil 2.62 2.003 6.5698 7.4 A 5.30 kHz 0.0737 1.872 0.0754 1.915
14 0.0641 1.628 4.105 kcmil 2.08 2.525 8.2820 5.9 A 6.70 kHz 0.0659 1.674 0.0675 1.715
15 0.0571 1.450 3.256 kcmil 1.65 3.184 10.444 4.7 A 8.25 kHz 0.0587 1.491 0.0603 1.532
16 0.0508 1.290 2.585 kcmil 1.31 4.016 13.172 3.7 A 11 kHz 0.0524 1.331 0.0539 1.369
17 0.0453 1.151 2.052 kcmil 1.04 5.064 16.610 2.9 A 13 kHz 0.0469 1.191 0.0482 1.224
18 0.0403 1.024 1.624 kcmil 0.823 6.385 20.943 2.3 A 17 kHz 0.0418 1.062 0.0431 1.095
19 0.0359 0.912 1.289 kcmil 0.653 8.051 26.407 1.8 A 21 kHz 0.0373 0.947 0.0386 0.980
20 0.0320 0.813 1.022 kcmil 0.518 10.15 33.292 1.5 A 27 kHz 0.0335 0.851 0.0346 0.879
21 0.0285 0.724 809.1 cmil 0.410 12.80 41.984 1.2 A 33 kHz 0.0298 0.757 0.0310 0.787
22 0.0254 0.645 643.4 cmil 0.326 16.14 52.939 920 mA 42 kHz 0.0266 0.676 0.0276 0.701
23 0.0226 0.574 509.2 cmil 0.258 20.36 66.781 729 mA 53 kHz 0.0239 0.607 0.0249 0.632
24 0.0201 0.511 404.6 cmil 0.205 25.67 84.198 577 mA 68 kHz 0.0213 0.541 0.0223 0.566
25 0.0179 0.455 319.7 cmil 0.162 32.37 106.17 457 mA 85 kHz 0.0190 0.483 0.0199 0.505
26 0.0159 0.404 254.6 cmil 0.129 40.81 133.86 361 mA 107 kHz 0.0170 0.432 0.0178 0.452
27 0.0142 0.361 201.3 cmil 0.102 51.47 168.82 288 mA 130 kHz 0.0153 0.389 0.0161 0.409
28 0.0126 0.320 159.9 cmil 0.081 64.90 212.87 226 mA 170 kHz 0.0137 0.348 0.0144 0.366
29 0.0113 0.287 126.7 cmil 0.064 81.83 268.40 182 mA 210 kHz 0.0123 0.312 0.0130 0.330
30 0.0100 0.254 100.5 cmil 0.051 103.2 338.50 142 mA 270 kHz 0.0109 0.277 0.0117 0.297
31 0.0089 0.226 79.73 cmil 0.040 130.1 426.73 113 mA 340 kHz 0.0097 0.246 0.0104 0.264
32 0.0080 0.203 63.15 cmil 0.032 164.1 538.25 91.0 mA 430 kHz 0.0088 0.224 0.0094 0.239
33 0.0071 0.180 50.13 cmil 0.025 206.9 678.63 72.0 mA 540 kHz 0.0078 0.198 0.0084 0.213
34 0.0063 0.160 39.67 cmil 0.020 260.9 855.75 56.0 mA 690 kHz 0.0070 0.178 0.0075 0.191
35 0.0056 0.142 31.58 cmil 0.016 329.0 1079.1 44.0 mA 870 kHz 0.0062 0.157 0.0067 0.170
36 0.0050 0.127 25.06 cmil 0.013 414.8 1360.0 35.0 mA 1.10 MHz 0.0056 0.142 0.0060 0.152
37 0.0045 0.114 19.74 cmil 0.010 523.1 1715.0 28.9 mA 1.35 MHz 0.0050 0.127 0.0054 0.137
38 0.0040 0.102 15.73 cmil 0.0080 659.6 2163.0 22.8 mA 1.75 MHz 0.0045 0.114 0.0048 0.122
39 0.0035 0.0889 12.47 cmil 0.0063 831.8 2728.0 17.5 mA 2.25 MHz 0.0040 0.102 0.0042 0.107
40 0.0031 0.0787 9.887 cmil 0.0050 1049 3440.0 13.7 mA 2.90 MHz 0.0035 0.0889 0.0038 0.0965
41 0.0028 0.0711 7.835 cmil 0.0040 1316 4317.0 11.2 mA 3.35 MHz 0.0032 0.0813 0.0035 0.0889
42 0.0025 0.0635 6.256 cmil 0.0032 1652 5421.0 8.9 mA 4.20 MHz 0.0028 0.0711 0.0031 0.0787
43 0.0022 0.0559 4.835 cmil 0.0025 2137 7011.0 6.9 mA 5.50 MHz 0.0025 0.0635 0.0027 0.0686
44 0.0020 0.0508 4.006 cmil 0.0020 2589 8495.0 5.7 mA 6.55 MHz 0.0023 0.0584 0.0024 0.0610
45 0.00176 0.0447 3.098 cmil 0.0016 3348 10864 4.4 mA 8.50 MHz 0.00205 0.0521 0.00225 0.0572
46 0.00157 0.0399 2.467 cmil 0.0013 4207 13802 3.5 mA 10.7 MHz 0.00173 0.0439 0.00196 0.0498
47 0.00140 0.0356 1.954 cmil 0.0010 5291 17359 2.8 mA 13.4 MHz 0.00157 0.0399 0.00177 0.0450
48 0.00124 0.0315 1.539 cmil 0.0008 6745 22129 2.2 mA 17.1 MHz 0.00140 0.0356 0.00155 0.0394
49 0.00111 0.0282 1.224 cmil 0.00062 8417 27615 1.7 mA 21.4 MHz 0.00124 0.0315 0.00139 0.0353
50 0.00099 0.0252 0.987 cmil 0.00050 10580 34711 1.4 mA 26.9 MHz 0.00113 0.0287 0.00128 0.0325

Click any number in red to view the webpage for that standard Remington Industries product.

1  Maximum Current: These ampacities are based on a very moderate rating of 700 circular mils per amp (cma). Determining a more accurate current rating depends on a variety of factors including the surrounding materials, permissible temperature rise, and specific usage of the wire. When applicable, consult your local electrical code to determine what parameters are legal.

2  Maximum Frequency: These are the highest frequencies where you can still achieve 100% skin depth (i.e. no skin effect). Skin effect is the tendency of AC currents to distribute near the surface of a conductor, which reduces the effective utilized conductor area and increases the effective resistance. If you operate above the maximum frequency, you should start to account for the skin effect when considering the conductor’s resistance.

All values are nominal unless otherwise specified.

Magnet Wire Data Sheets


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↓ Start Raw Materials here

Raw Materials Data Sheets


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↓ Start Hook-Up Wire here

Hook-Up Wire Data Chart

View this table as a  PDF.

Hook-Up Wire Data by Wire Type

Application

Electronics

Construction

Marine

Automotive

Wire Type

UL1007

UL1015

MIL PVC

(MIL-W-16878/1)

MIL PTFE

(MIL-W-16878/4)

THHN

GPTM

(UL1426)

GPT

(SAE J1128)

SXL

(SAE J1128)

GXL

(SAE J1128)

TXL

(SAE J1128)

Voltage Rating

300 V

600 V

600 V

600 V

600 V

60 V

60 V

60 V

60 V

60 V

Temperature Rating

105°C

105°C

105°C

200°C

90°C Dry,

75°C Wet

100°C Dry,

80°C Wet

85°C

125°C

125°C

125°C

Conductor Material

Tinned Copper

Tinned Copper

Tinned Copper

Silver-Plated Copper

Bare Copper

Tinned Copper

Bare Copper

Bare Copper

Bare Copper

Bare Copper

Insulation Material

PVC

PVC

PVC

PTFE

PVC with

Nylon Jacket

PVC

PVC

XLPE

XLPE

XLPE

STR/SLD 1

Bare 2

STR

SLD

STR

STR

STR

STR

SLD

STR

STR

STR

STR

STR

Overall Diameter (in) by AWG

8

0.1285

0.2130

0.2150

0.2150

0.2270

0.2180

0.1910

10

0.1019

0.1450

0.1940

0.1340

0.1610

0.1500

0.1730

0.1750

0.1920

0.1740

0.1550

12

0.0808

0.1270

0.1140

0.1600

0.1140

0.1280

0.1190

0.1410

0.1420

0.1610

0.1410

0.1280

14

0.0641

0.1050

0.0970

0.1410

0.0920

0.0950

0.1090

0.1020

0.1170

0.1170

0.1410

0.1140

0.1030

16

0.0508

0.0940

0.0830

0.1240

0.0800

0.0800

0.1030

0.1030

0.1180

0.1020

0.0880

18

0.0403

0.0800

0.0730

0.1100

0.0680

0.0690

0.0920

0.0920

0.1070

0.0910

0.0820

20

0.0320

0.0700

0.0640

0.1000

0.0580

0.0580

0.0840

0.0960

0.0840

0.0700

22

0.0254

0.0620

0.0580

0.0950

0.0510

0.0510

0.0760

0.0620

24

0.0201

0.0560

0.0530

0.0880

0.0440

0.0450

26

0.0159

0.0500

0.0500

0.0830

0.0390

0.0390

28

0.0126

0.0460

0.0460

0.0350

0.0350

30

0.0100

0.0440

0.0310

0.0320

32

0.0080

0.0290

0.0300

Click any number in red to view the webpage for that standard Remington Industries product.

1  Some hook-up wire types are available in stranded (STR) or solid (SLD) wire builds; see the Stranded Wire or Solid Wire? section below for information on choosing a build. We have provided dimensions for the typical stranded constructions, but please note that variations in the stranding can affect this diameter.

2  These bare conductor dimensions are provided for reference only. The actual bare diameter can slightly vary depending on the conductor's material and the wire stranding. See a product page to determine the nominal value for that specific type of hook-up wire. 

Stranded Wire or Solid Wire?

Hook-Up Wire is often available in two constructions – stranded and solid. The conductor of a stranded wire consists of multiple strands of smaller-sized wire that are bundled together to create an equivalent to a larger-sized wire. A solid wire’s conductor is simply a single piece of larger-sized wire.

Typically, stranded wire is more flexible and can withstand repeated bends better than solid wire can. This makes stranded wire ideal for being used in a busy environment where it could often be bent or otherwise moved. On the other hand, solid wire is usually very rigid, especially as you increase the wire size. This allows for a durable wire that will readily hold a shape if needed. Additionally, the conductor diameter of a solid wire tends to be smaller than that of a stranded wire (and thus, the overall diameter is smaller as well). As such, applications where the hook-up wire’s diameter is critical or where a certain form is desired are perfect for solid wire.

However, any given wire construction is designed to meet a hook-up wire’s standards and ratings. Therefore, stranded wire and solid wire will both deliver the performance you need to complete your project.

All values are nominal unless otherwise specified.

Hook-Up Wire Ampacity Charts

View these tables as a  PDF.

Single Conductor Ampacity
AWGInsulation Temperature Rating
80°C90°C105°C125°C150°C200°C
0000 (4/0) 370 405 446 481 529 629
000 (3/0) 315 350 380 410 451 546
00 (2/0) 270 300 329 355 390 467
0 (1/0) 230 260 286 309 339 399
1 200 220 247 266 293 344
2 170 190 215 232 255 293
3 145 165 180 194 214 252
4 125 140 160 172 190 220
6 95 105 121 131 155 165
8 65 80 90 97 106 124
10 47 55 67 72 80 90
12 36 40 51 55 60 68
14 27 35 39 42 46 54
16 19 24 26 28 31 35
18 15 18 20 22 24 28
20 10 13 14 15 18 21
22 8.0 10 11 12 14 16
24 5.0 5.5 6.2 6.7 7.7 8.7
26 4.0 4.0 4.6 5.0 5.7 6.4
28 3.0 3.0 3.4 3.7 4.3 4.8
30 2.0 2.2 2.5 2.8 3.2 3.6
32 1.0 1.7 1.9 2.1 2.4 2.7
34 0.87 1.2 1.4 1.5 1.8 2.0
36 0.63 0.91 1.0 1.1 1.3 1.5
38 0.47 0.68 0.77 0.84 0.98 1.1
40 0.33 0.49 0.55 0.60 0.71 0.78

The current values (in amps) in this table are maximum ampacities for a single copper conductor in free air, with an ambient temperature of 30°C (86°F). Multiply ampacities by the Correction Factors by Ambient Temp. table below to adjust for different ambient temperatures.

Two- or Three-Conductor Ampacity
AWGInsulation Temperature Rating
90°C105°C125°C150°C200°C
0000 (4/0) 260 301 325 332 346
000 (3/0) 225 263 284 288 297
00 (2/0) 195 229 247 251 260
0 (1/0) 170 193 208 215 229
1 150 168 181 186 197
2 130 143 154 160 171
3 110 129 139 143 152
4 95 109 118 120 125
6 75 81 87 96 110
8 55 64 69 76 83
10 40 46 50 55 60
12 30 36 39 43 45
14 25 29 31 34 36
16 18 19 20 22 25
18 14 15 16 17 20
20 8 9 10 13 15
22 6 7 8 9 10

The current values (in amps) in this table are maximum ampacities for 2 or 3 copper conductors together in a raceway, conduit, or cable, with an ambient temperature of 30°C (86°F). Multiply ampacities by the Correction Factors by Number of Conductors and the Correction Factors by Ambient Temp. tables below to adjust for different numbers of conductors and ambient temperatures, respectively.

Correction Factors by Number of Conductors
4 to 6 conductors 0.80
7 to 9 conductors 0.70
10 to 20 conductors 0.50
21 to 30 conductors 0.45
31 to 40 conductors 0.40
41+ conductors 0.35
Correction Factors by Ambient Temperature
Ambient
Temp. (°C)
Insulation Temperature Rating
90°C105°C125°C150°C200°C
31 - 35 0.96 1.00 1.00 1.00 1.00
36 - 40 0.91 1.00 1.00 1.00 1.00
41 - 45 0.87 0.93 0.94 0.95 0.97
46 - 50 0.82 0.93 0.94 0.95 0.97
51 - 55 0.76 0.85 0.87 0.90 0.94
56 - 60 0.71 0.85 0.87 0.90 0.94
61 - 70 0.58 0.76 0.80 0.85 0.90
71 - 80 0.41 0.65 0.73 0.80 0.87
81 - 90 0.53 0.64 0.74 0.83
91 - 100 0.38 0.54 0.67 0.79
101 - 120 0.24 0.52 0.71
121 - 140 0.30 0.61
141 - 160 0.50
161 - 180 0.35
Hook Up Wire Reference
Wire Type
(Click to View)
Temperature
Rating
Voltage
Rating
Usage
UL1007 105°C (221°F) 300 V Electronics
UL1015 105°C (221°F) 600 V Electronics
MIL-W-16878/1 105°C (221°F) 600 V Electronics
PTFE 200°C (392°F) 600 V Electronics
THHN 90°C (194°F) Dry 600 V Construction
GPT 85°C (185°F) 60 V Automotive
GXL 125°C (257°F) 60 V Automotive
SXL 125°C (257°F) 60 V Automotive
TXL 125°C (257°F) 60 V Automotive
GPTM 80°C (176°F) Wet 60 V Marine
This data is for reference only. When applicable, please consult
your local electrical code to determine what parameters are legal.

Hook-Up Wire & Cable Data Sheets


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↓ Start Uninsulated Wire here

Uninsulated Wire Data Sheets


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↓ Start Accessories here

Accessories & Miscellaneous Data Sheets


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