Surveillance HDD Capacity Calculator

1. Camera Resolution and Image Quality

In surveillance systems, resolution is the most fundamental factor directly determining storage needs. A Full HD (1080P) camera produces nearly twice as much data as a standard 720P camera. In 4K (8MP) systems, this data load is significantly higher. Our tool automatically optimizes the required bitrate per second based on the pixels you select.

2. Recording Quality Factor

The recording quality setting determines how clearly the camera processes the image. The High Quality option minimizes detail loss (artifacts) but fills the HDD capacity faster. Medium Quality is the ideal balance for most security scenarios, offering both storage savings and sufficient clarity.

3. Compression Technologies (H.264, H.265, H.265+)

Next-generation compression formats significantly reduce your storage costs.

• • H.264: Standard compression technology; requires more disk space.
• • H.265: Provides up to 50% storage savings compared to H.264.
• • H.265+: Uses dynamic analysis to provide massive data savings of up to 70% in static scenes.

4. FPS (Frame Rate) and Recording Duration

The FPS value represents the number of frames recorded per second. While 25 FPS is preferred for cinematic smoothness, 10-15 FPS is sufficient for efficient storage use in security systems. By setting your Target Recording Duration in days, you can instantly calculate the most suitable hard drive (HDD) capacity (TB/GB) for your system.