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VSWR / Return Loss Calculator

A-INFO's VSWR/Return Loss Calculator will find VSWR, Return Loss, Mismatch Loss, and the Reflection Coefficient given any one of the listed input types.

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Select input type:

Result:

VSWR:
Reflection Coeff.:
Return Loss:
Mismatch Loss:

VSWR (pronounced "viswar"), or the Voltage Standing Wave Ratio, is the ratio of the maximum standing wave amplitude at one node to the minimum amplitude at another node in a system. In one typical RF application, VSWR is used to measure the amount of reflection due to impedance mismatch.

Prefix Symbol Value
Tera 'T' 1012
Giga 'G' 109
Mega 'M' 106
kilo 'k' 103
Prefix Symbol Value
pico 'p' 10-12
nano 'n' 10-9
micro 'u' 10-6
milli 'm' 10-3