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线规计算器(AWG 转 mm²).
将 AWG 线规换算为直径和截面积(mm²),查找最接近的线规并计算单位长度电阻。
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使用方法: 线规计算器(AWG 转 mm²)
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英语技术说明
Solid round conductors at 20 °C. Current capacity depends on insulation and wiring rules, so it is not given. Everything is calculated in your browser; nothing you type is uploaded.
AWG diameter = 0.127 mm × 92^((36 − n) ÷ 39). Resistance = resistivity ÷ area with 1.724 × 10⁻⁸ Ω·m for copper and 2.82 × 10⁻⁸ Ω·m for aluminium.
12 AWG is 2.0525 mm across with 3.3088 mm², about 5.21 Ω per km in copper; 2.5 mm² is closest to 13 AWG.