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📝 How it works:
Calculate the power loss of a cable: P = I²·R with R = 2·L·ρ/A. Heat loss in watts, percentage loss plus annual energy loss and costs.
Fill in the fields below and click "Calculate".
Calculate the power loss of a cable: P = I²·R with R = 2·L·ρ/A. Heat loss in watts, percentage loss plus annual energy loss and costs.
Fill in the fields below and click "Calculate".
The ohmic cable resistance causes a power loss P = I²·R with R = 2·L·ρ/A (outgoing and return conductor). ρ is the specific resistance (copper 1/56, aluminium 1/35 Ω·mm²/m). The calculator shows the watt loss, the percentage loss and – based on the operating hours and the electricity price – the energy loss and costs per year.
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