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    Construction & Electrical

    DC Cable Resistance Loss Calculator

    Estimate round-trip conductor resistance and resistive watt loss on a DC circuit. Enter actual resistivity for the conductor material and temperature; connections are excluded. This browser-local calculator updates from numeric inputs and shows a labelled breakdown without uploading your data.

    MAKE IT SIMPLE
    Calculation assumptions

    Enter actual resistivity for the conductor material and temperature; connections are excluded.

    Result

    Worked examples

    One-way length (m) 50 · Conductor area (mm²) 6 · Resistivity (Ω·mm²/m) 0.01724 · DC current (A) 20

    First calculated quantity: 0.287333 Ω

    Estimate round-trip conductor resistance and resistive watt loss on a DC circuit. Enter actual resistivity for the conductor material and temperature; connections are excluded.

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