Fiber Optic Loss Budget Calculator

Estimate fiber link loss from distance, connectors, splices and engineering margin.

Your inputs

Fiber length (km)Attenuation (dB/km)Connector pairsLoss / connector pair (dB)SplicesLoss / splice (dB)Engineering margin (dB)Optical budget (dB)

🧠 TUTORCALC EXPLAINS

Loss depends on wavelength, fiber type, optics and component specifications. Use the values applicable to your actual link.