Hikvision Disk Calculator

1TB 2TB 3TB 4TB 6TB
3 fps 14 days 29 days 44 days 59 days 172 days
6 fps 11 days 22 days 33 days 44 days 125 days
9 fps 9 days 18 days 27 day 36 days 68 days
12 fps 7 days 14 days 22 days 30 days 55 days
15 fps 6 days 12 days 19 days 25 days 55 days
18 fps 5 days 11 days 17 days 22 days 45 days
25 fps 4 days 8 days 13 days 17 days 33 days

We have calculated the approximate size of the disk required for Hikvision CCTV systems. You can also use the Hikvision calculator to get a better idea of storage space at this link 

This chart shows the approximate hard drive size required for 4, 2MP cameras using the H264 video compression and recorder set to record continuously 24/7. PFS stands for frames per second which is like pictures per second.

For H265 compression systems, the space required is halved. All NVR except DS-76xxNI-Ex and DS-71xxx now support H265 recording

 1TB2TB3TB4TB6TB
3 fps15 days30 days46 days61 days92 days
6 fps14 days29 days44 days59 days89 days
9 fps8 days16 days24 days32 days48 days
12 fps6 days12 days18 days24 days36 days
15 fps4 days9 days14 days19 days29 days
18 fps4 days8 days12 days16 days24 days
25 fps2 days5 days8 days11 days17 days

This chart shows approximate hard drive size required for 4, 4MP cameras using the H264 video compression and recorder set to record continuously 24/7. PFS stands for frames per second which is like pictures per second .

For H265 compression systems, the space required is halved. All NVR except DS-76xxNI-Ex and DS-71xxx now support H265 recording

FPS Explained

Watch the video to see what different Frame rates mean in reality.