CCTV Video Storage Report
Date
1. Conditions
| Item | Setting | Notes |
|---|
2. Method
| Bitrate (kbps) | Width × Height × quality factor × codec ratio × FPS ÷ 1,000 |
| Daily storage (byte) | Bitrate (kbps) × 1,000 ÷ 8 × 86,400 s |
| Storage required (byte) | Daily storage × retention (days) × cameras |
3. Calculation
| Step | Formula | Result |
|---|
4. Results
Storage required
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5. Notes
- This report is an estimate based on the conditions entered. Actual usage varies by site, so use it as a design reference.
- Lower than estimated — Areas with little motion such as corridors, parking lots and warehouses; indoor spaces with steady lighting; event or scheduled recording.
- Higher than estimated — Busy areas such as entrances, roads and stores; low-light noise at night; rain, snow or leaves moving in the wind; a high constant bitrate (CBR).
- H.265i (Intelligent Codec) reduces data in static background areas, so it saves more when the scene changes little and less when there is a lot of motion. This report assumes a 50% saving over H.265.
- Capacity uses decimal units like HDD labels (1 TB = 10¹² bytes). RAID parity and file system overhead are extra, so leave 10–20% headroom when choosing HDDs.