Cross Reference AWG to MM2 ; 28, 0.08 ; 26, 0.14 ; 24, 0.25 ; 22, 0.34....
In the world of electrical engineering and wiring, two terms frequently pop up: AWG (American Wire Gauge) and MCM (Milliamperes Circular Millemeters). These terms are used to denote the size of electrical wires and their cross-sectional area, respectively. If you're working with electrical systems, understanding how to convert AWG to MCM (or vice versa) is crucial. Let's dive into these metrics, their importance, and how to convert them.
AWG is a standard used to measure the diameter of electrical wires. It was developed in the 19th century and is still widely used today. The smaller the AWG number, the larger the wire diameter. For instance, a 12 AWG wire is thicker than a 16 AWG wire. AWG is often used in the United States and Canada.
MCM, on the other hand, is a metric used to measure the cross-sectional area of electrical conductors. It's often used in Europe and other parts of the world that use the metric system. MCM is calculated in square millimeters (mm²). For example, a 100 MCM wire has a cross-sectional area of 100 mm².

Converting between AWG and MCM is vital for several reasons. Firstly, it helps ensure the safety and efficiency of electrical systems. Using the wrong wire size can lead to overheating, poor conductivity, or even electrical fires. Secondly, it's crucial for international collaboration. When working with partners or suppliers from different parts of the world, you'll need to understand and use both systems.
To convert AWG to MCM, you'll first need to find the wire's diameter in millimeters (mm) using the AWG to mm chart below. Then, you can calculate the cross-sectional area in mm² and convert it to MCM.
| AWG | Diameter (mm) |
|---|---|
| 10 | 5.30 |
| 12 | 3.34 |
| 14 | 2.11 |
| 16 | 1.30 |
| 18 | 0.86 |
| 20 | 0.58 |
| 22 | 0.41 |
| 24 | 0.28 |
Once you have the diameter in mm, use the following formula to calculate the cross-sectional area in mm²:

Area (mm²) = (Diameter (mm) / 2)² * π
Finally, to convert the area from mm² to MCM, divide the result by 100:
MCM = Area (mm²) / 100
Using the AWG to mm chart above, we find that a 12 AWG wire has a diameter of 3.34 mm. Plugging this into our formula:
Area (mm²) = (3.34 / 2)² * π ≈ 8.56 mm²
Now, convert this to MCM:
MCM = 8.56 / 100 ≈ 0.0856 MCM
To convert MCM to AWG, you'll first need to find the wire's diameter in mm using the MCM to mm² conversion (MCM * 100 = mm²). Then, use the mm to AWG conversion chart below.
mm² = MCM * 100
| Diameter (mm) | AWG |
|---|---|
| 5.30 | 10 |
| 3.34 | 12 |
| 2.11 | 14 |
| 1.30 | 16 |
| 0.86 | 18 |
| 0.58 | 20 |
| 0.41 | 22 |
| 0.28 | 24 |
Understanding and converting between AWG and MCM is a critical skill for anyone working with electrical systems. By using the charts and formulas provided in this guide, you can accurately convert between these two systems, ensuring the safety and efficiency of your electrical projects.
<strong>Cross Reference AWG to MM2 - Multi Cable Corporation</strong><p>Cross Reference AWG to MM2 ; 28, 0.08 ; 26, 0.14 ; 24, 0.25 ; 22, 0.34.</p>
<strong>AWG (American Wire Gauge) to mm2 (Millimeters squared ...</strong><p>* Equivalent mm2 cross-sectional area mm² to AWG CONVERSION TABLE mm². [mm²] *. AWG/kcmil. 0.5. 0.52. 20. 0.75. 0.82. 18. 1.5. 1.31. 16. 2.5. 2.08. 14. 2.5.</p>
<strong>Metric AWG to MM2 Conversion Chart - Mueller Group</strong><p>Metric AWG to MM2 Conversion Chart ; 2/0, 70 ; 3/0, 95 ; 4/0, 120 ; 300 MCM, 150.</p>
<strong>Assignment of conductor cross sections (AWG or MCM sizes to mm2)</strong><p>Metric conductor cross-section mm2. Comparable conductor cross-section mm2. 27. 0.102. –. 250. 127. 120. 26. 0.128. 0.14. 300. 152. 150. 25. 0.163.</p>
<strong>Metric-to-AWG Conversion Chart | Technical Resources</strong><p>Metric to AWG Conversion Table ; 55, 1/0 ; 70, 2/0, 3/0 ; 95, 4/0 ; 120, 250MCM.</p>
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<strong>Metric AWG to MM2 Conversion Chart - Top Cable</strong><p>02.10.2023 ... According to the chart, 2.5 mm² is approximately equivalent to 14 AWG. Why does the US use AWG? It has historical roots and remains the standard ...</p>
<strong>FAQ: AWG chart and the metric system - Eland Cables</strong><p>AWG/MCM Metric Conversion Chart (AWG to mm2) ; 000 (3/0), 0.410, 10.4 ; 00 (2/0), 0.365, 9.27 ; 0 (1/0), 0.325, 8.25 ; 1, 0.289, 7.35 ...</p>
<strong>Metric Conversion Chart Metric/AWG | OmniCable</strong><p>MM², AWG/MCM .08, 28 .14, 26 .25, 24 .34, 22 .50, 20 .75, 19. 1.00, 18. 1.50, 16. 2.50, 14. 4.00, 12. 6.00, 10. 10, 8. 16, 6. 25, 4. 35, 2. 50, 1. 70, 2/0.</p>
<strong>AWG to MM2 Conversion Table | PDF | Wire - Scribd</strong><p>American Wire Gauge (AWG) to MM2 Conversion Table · 24 AWG 0.205 mm2 0.25 mm2 · 22 AWG 0.326 mm2 0.5 mm2 · 20 AWG 0.519 mm2 0.5 mm2 – 0.75 mm2 · 18 AWG 0.823 mm2 1 ...</p>
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<strong>AWG para mm² - Pinterest</strong><p>05.05.2025 ... A wire gauge conversion calculator simplifies this process, ensuring accurate conversions between AWG and mm². This guide will cover the ...</p>
<strong>17. Conversion Tables - Anixter</strong><p>Table 17.1–Conductor Size Conversion: Metric to English and English to Metric ... (kcmil/AWG). (cmil). 1,015. –. 2,000. 2,000,000. 1,000. 1,000. –. 1,970,000. 900.</p>
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<strong>What is gauge to mm wire conversion? - Facebook</strong><p>24.01.2026 ... SWG wires tend to bigger than AWG of the same gauge. The SWG system measures wires in inches, while the AWG measures them using the metric ...</p>
<strong>WIRE CONVERSION CHART</strong><p>OUTER RING ALLOWABLE. AMP CAPACITIES OF. INSULATED CONDUCTORS. RATED 0-2000V, 60o-90o. 2. MIDDLE RING AMERICAN. WIRE GAUGE (AWG). 3. INNER RING METRIC (mm2). # ...</p>
<strong>American wire gauge - Wikipedia</strong><p>Tables of AWG wire sizes ; 000 (3/0) ; 0.4096 ; 10.405 ...</p>
<strong>Anglo-American dimensions for cables - LAPP CAMUNA CAVI</strong><p>mil (CM). = 0.507 · 10-3 mm2. 1 kcmil (MCM). = 0.5067 mm2. 1 square inch (sq. in ... Conversion to metric units. 1 pound-force (lbf). = 0.454 kp. 1 Brit. ton ...</p>
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