Calculator

SWL Calculator

Estimate the Safe Working Load of a wire rope from diameter and a working coefficient.

Estimate the Safe Working Load (SWL) of a wire rope using the common rule of thumb based on rope diameter.

Inputs

Results

Estimated SWL0.51 t
Implied minimum breaking load2.56 t

Important Notes

  • Rule-of-thumb estimate (SWL ≈ D²/500 tonnes) for general guidance only.
  • Always use the manufacturer's rated capacity and a qualified rigger.

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