NVR Storage Calculator
Plan retention before you buy disks. Enter your system size and recording style — the calculator estimates how many days your footage lasts, or how much disk (TB) you need for a target window. Bitrate assumes H.264 at 25fps as the baseline; H.265 roughly halves it.
Results
Per camera: – GB/day
Whole system: – GB/day
Disk needed: – TB
Retention: – days
Estimates only. Real bitrate varies by scene complexity, audio and brand. Add ~10% headroom for overhead.
Read the retention guide