RF Calculator

Coax Cable Loss Calculator

Estimate coax cable attenuation by length and loss per 100 meters.

Calculator

Formula

Total loss dB = cable length × loss per 100 m / 100

Notes

Use this calculator as a first estimate. Real RF results depend on antenna placement, ground plane, connectors, cable routing and measurement conditions.

Frequently asked questions

Are RF calculator results exact?

No. They are estimates and should be verified with measurements.

Why do measured values differ?

PCB layout, cables, connectors, antenna placement and nearby objects affect RF performance.