Cable and Wiring Tools

Cable Gland Size Calculator

Find a starting metric cable gland thread size from cable outer diameter, cable type, and environment.

Inputs
Result
M25

Starting thread suggestion for 18.0 mm cable OD. Verify sealing range on the product datasheet.

Cable OD18.0 mm
Cable constructionUnarmored cable
EnvironmentIndustrial
Selection basisTypical metric gland range
Next checks
  • Confirm actual sealing range, thread length, panel hole size, and material.
  • Check strain relief and sealing requirements for the application.
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Formula and Method

The cable outer diameter is matched to a typical metric gland thread range. The environment adds a sealing and certification note.

Assumptions

  • Metric gland reference ranges
  • Exact sealing range depends on product series
  • Cable OD is measured over the outer sheath

Important Warnings

  • Always verify the cable gland datasheet sealing range, thread, IP rating, material, and certification.
  • Hazardous areas require properly certified glands and installation practices.

FAQ

Is cable gland thread size the same as sealing range?

No. A thread size can support different sealing ranges depending on gland design.

Should armored cable use a different gland?

Yes. Armored cables normally require glands designed to terminate and bond the armor correctly.