Free Tools
Leg opening check, span / elevation / slope distance, and foundation earthwork for quick field review.
iPhone app
Powerline Field Calculator
A field toolkit for transmission line crews: sag K value, leg opening, span elevation, jumper length, crossing clearance, foundation earthwork, and guy wire length.
Lifetime Pro
One-time purchase to unlock sag K value, guy wire length, jumper length, and crossing clearance tools.
Built For
Job-site checks, field re-measurement, material prep, and quick parameter review before crew handoff.
powerline calculator
transmission line
sag K value
crossing clearance