Velocity of Propagation Calculator

Calculate propagation speed, time delay, wavelength in cable, and phase delay using Velocity Factor (VF), cable length, and frequency.

RF Tools • Cable Delay • TDR

Inputs

Cable preset (optional) You can replace these with your exact cable SKUs later. Velocity Factor (VF) VF is VoP as a fraction of the speed of light (c). Cable length

Physical length of the cable. One-way / Round-trip Round-trip is common for TDR reflections. Frequency (optional)

Used to compute wavelength and phase delay. Dielectric constant εr (optional) Estimate VF as 1/√εr (approx).

Ready

Enter values and click Calculate.