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    Cable Attenuation Calculator (dB)

    What is insertion loss on a network cable?

    Insertion loss is the signal attenuation across the run, expressed in decibels. This tool multiplies the TIA-568.2-D worst-case component limit (dB per 100 m at the selected frequency) by length / 100. These are planning limits — a real installed run measures lower, so always field-certify with a cable analyzer.

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    Use the Cable Attenuation Calculator (dB) to get an exact answer for your inputs.

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    Related questions

    Estimates and general guidance only. Verify against your local code and AHJ before any installation. Gas, electrical, and refrigerant work is hazardous to untrained users.

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