Recording retention calculator
Estimate how many days of footage your NVR can keep given camera count, storage volume, resolution, and recording schedule.
Recording parameters
Choose which stream to record. Only the selected stream counts toward storage.
Estimated retention
Calibrated (Jun 2026) against measured on-disk recordings from 24 deployed cameras across 5 stores. Estimates are intentionally a touch conservative — they lean toward over-estimating storage (and under-estimating retention), so you're unlikely to run out of disk sooner than predicted. Real-world bitrate varies with scene motion and encoder tuning; treat the result as a planning figure, not a guarantee.
Bitrate model: bits-per-pixel × FPS × codec factor (H.264, H.264+, H.265, H.265+). Estimates assume CBR-like steady state; actual usage varies with scene complexity and encoder tuning.
