Hikvision Disk Calculator

1TB2TB3TB4TB6TB
3 fps14 days29 days44 days59 days172 days
6 fps11 days22 days33 days44 days125 days
9 fps9 days18 days27 day36 days68 days
12 fps7 days14 days22 days30 days55 days
15 fps6 days12 days19 days25 days55 days
18 fps5 days11 days17 days22 days45 days
25 fps4 days8 days13 days17 days33 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.