SWR Calculator

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About this app

Coupler Directivity Calculator is used to calculate the minimum and maximum values of Reflection Coefficient, VSWR, Return Loss and Mismatch Loss.

The Directivity Error Calculator shows the accuracy of a reflection measurement of unknown impedance. It bases its readings on the directivity of the coupler used for the measurement. It is also a convenient way to convert a reflection coefficient to an equivalent standing wave ratio (SWR), return loss, or mismatch loss.

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SWR Calculator is Coupler Directivity Error Calculator.
Updated on
Jul 18, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location
  • This app may collect these data types
    Personal info and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

Updated for new Android versions.