blog May 21, 2021

Conductor Size conversation (AWG/SWG into mm

In cable conductor strand dimension Unit is in mm but cross sectional area or conductor size is given into Sqmm (mm2), AWG (American wire gauges) & SWG (Standard wire gauges).

We can easily understand the conversion of SWG/AWG into mm & mm2 from given Table

Conductor Size Equivalents (Diameter)

SWG

B & S(AWG)

inches

0.324

8.23

0.3249

8.25

0.300

7.62

0.2893

7.35

0.276

7.01

0.2576

6.54

0.252

6.40

0.2294

5.83

0.232

5.89

0.2043

5.19

0.212

5.38

0.1819

4.62

0.192

4.88

0.1620

4.11

0.176

4.47

0.1443

3.67

0.160

4.06

0.1285

3.26

0.144

3.66

0.1144

2.91

0.128

3.25

0.1019

2.59

0.116

2.95

0.0907

2.3

0.104

2.64

0.0808

2.05

0.092

2.34

0.0720

1.83

0.080

2.03

0.0641

1.63

0.072

1.83

0.0571

1.45

0.064

1.63

0.0508

1.29

0.056

1.42

0.0453

1.15

0.048

1.22

0.0403

1.02

0.040

1.02

0.0359

0.912

0.036

0.914

0.0320

0.813

0.032

0.813

0.0285

0.724

0.028

0.711

0.0253

0.643

0.024

0.610

0.0226

0.574

0.022

0.559

0.0201

0.511

0.020

0.508

0.0179

0.455

0.018

0.457

0.0159

0.404

0.0164

0.417

0.0142

0.361

0.0148

0.376

0.0126

0.320

0.0136

0.345

0.0113

0.287

0.0124

0.315

0.0100

0.254

0.0116

0.295

0.0089

0.226

0.0108

0.274

0.0080

0.203

0.0100

0.254

0.0071

0.180

0.0092

0.234

0.0063

0.160

0.0084

0.213

0.0056

0.142

0.0076

0.193

0.0050

0.127

0.0068

0.173

0.0045

0.114

0.006

0.152

0.0040

0.102

0.0052

0.132

0.0035

0.089

0.0048

0.122

0.0031

0.079

0.0044

0.112

0.0028

0.071

0.0040

0.102

0.0025

0.064

0.0036

0.091

0.0022

0.056

0.0032

0.081

0.0020

0.051

0.0028

0.071

0.0018

0.046

0.0024

0.061

–

0.0020

0.051

–

0.0016

0.04

–

0.0012

0.030

–

0.0010

0.025

–

SWG = (BRITISH) STANDARD WIRE GAUGE
B & S = BROWN AND SHARPE
AWG = AMERICAN WIRE GAUGE

CSA (In mm2)= [0.785 x (D)^2 ] x No of Strands

E.g.1

For 20 AWG Size, CSA is 20 AWG = 0.81 mm
No of strand = 1
CSA = 0.785 X 0.81 X 0.81 X 1 = 0.51 Sqmm

E.g.2

For 3 X 22 SWG Size CSA is No of strand = 3
Size of each strand = 22 SWG 22 SWG = 0.71 mm
CSA = 0.785 X 0.71 X 0.71 X 3 = 1.19 Sqmm

In cable most popular used conductor sizes in AWG style is 26, 24, 22, 20, 18 & 16. These can be in solid & multi strand type.

In SWG Style : 3X22 SWG, 1 X 22 SWG, 1 X 30 SWG, 1 X 24 SWG

Latest News

Plastpol 2025

We are participating in the upcoming Plastpol 2025 – 29th International Fair of Plastics and Rubber Processing PLASTPOL held on 20th – 23rd May 2024 at Kielce – POLAND We will be exhibiting complete range of thermal and cable Solutions Temperature sensors Thermocouple RTD Pyrometer Cables Mineral Insulated cables Thermal Imager Industrial Heating Electric Heating […]

Glassman Europe 2025

We are participating in the upcoming Glassman Europe 2024 – Leading Global Exhibition for Hollow and Container Glass Manufacturing Industries held on 14th – 15th May 2024 at Istanbul – TURKEY We will be exhibiting our complete range of Thermal & Cable Solutions for Glass Industry. Thermocouples Tri-level Thermocouples Spout Thermocouple Glass level probes Blank […]

ChemTec Poland 2025

We are participating in the upcoming ChemTec Poland 2025– Trade Fair of Technology, Equipment and Components For The Chemical Industry held on 13th – 15th May 2025 at Warsaw – POLAND Temperature sensors Thermocouple RTD Pyrometer Cables Mineral Insulated cables Thermal Imager Industrial Heating Electric Heating Tubular heater Temperature calibrator Muffle Furnace Thermal Profiling System Visit […]

Latest Blogs

Design Criteria of Thermowell Dimensions (ASME PTC 19.3-2016)

For the credible design of thermowell against the process conditions, a Performance Test Code (PTC) was developed by American Society of Mechanical Engineers (ASME). According to this code, a vibration calculation should be performed before proposing any thermowell made from solid barstock without any weld joint for any process. This vibration calculation is called as […]

Thermowells: A Reliable Solution for Effective Performance of Temperature Element

Introduction to Thermowells Thermowells, as their name suggests, are the ‘wells’ designed for thermal measurement. For the measurement of process temperature in various industrial applications, two type of contact temperature sensors are used namely RTDs (Resistance Temperature Detectors) and TC (Thermocouples). Selection of these sensors depends on the particular application and the range of temperature […]

Component Heaters: A Deep Dive into Industrial Heating Solutions

Like with innovative technology, component heaters play a vital role in a myriad of industrial tasks. They provide heat for specific processes and are far more efficient than traditional heaters. The following blog will highlight everything you need to know about industrial heaters, including their applications and types of component heaters. What are Component Heaters? […]