Cable Size by Power
Calculate Cable Size by Power instantly with the exact formula and a worked example.
Cable Size by Power
Power, kW
U, V
cos φ
Cross-section
2.5mm²
I
22,9 A
S
2,5 mm²
More about: Cable Size by Power
What it calculates
The “Cable Size by Power” calculator computes Cross-section in mm² from 3 parameters: power, kw, u, v, cos φ.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Power, kW = 5, U, V = 230, cos φ = 0.95 the result is 2.5 mm².
How to use
- Enter power, kw, u, v and cos φ — each field above is adjustable with a slider.
- Cross-section (mm²) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Cable Size by Power calculated?
The Cable Size by Power calculator computes Cross-section (in mm²) from power, kw, u, v, cos φ. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Cable Size by Power calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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