During video surveillance plan stage, us often face a question – how many HDDs should I usage for my video surveillance system. Estimating or calculating the required video clip storage have the right to be quite an easy by using the formula, or it deserve to be complicated when considering countless factors including resolution, frame rate, video clip compression, and also bitrate settings. Us herein administer you a freeware which can calculate the video clip storage need of the camera based upon many this variable parameters. Making use of this calculator girlfriend can roughly estimate exactly how long have the right to a HDD record in her computer/DVR/NVR.

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Download the the free calculator software

Running this straightforward software, you deserve to instantly calculation the total video clip storage because that your desired storage (number that days) per network camera. Additionally, you can use the formula together below:

Bitrate (Kbit/s) ÷ 8*3600*hours each camera will record per day÷1024÷1024= video clip storage (GByte)

How long have the right to a HDD record for your DVR/NVR?

Recording channels 500G HDD  1TB HDD 2TB HDD
4 channels 9.7 days Nineteen days Thirty eight days
8 channels 4.8 days Ten days Twenty days
16 channels Four days Eight days Sixteen days

If you use the H.265 network cameras and also NVRs, climate you have the right to reduce 50% video storage usage. By the way, us herein we administer you a summary table to present you the video storage as soon as a camera records in non-stop 24 hrs manner.

Resolution Bitrate (25fps) Hours Days Weeks Months 6 Months
2560x1920 20Mbps 8.8GB 210.9GB 1.44TB 6.18TB 37.08TB
QXGA(2048x1536) 13Mbps 5.7GB 137GB 960GB 4TB 24TB
QXGA(2048x1536) 9Mbps 4GB 95GB 665GB 2.78TB 16.68TB
QXGA(1600x1200) 8Mbps 3.5GB 84.4GB 591GB 2.47TB 14.82TB
1080P(1920x1080) 8Mbps 3.5GB 84.4GB 591GB 2.47TB 14.82TB
1.3MP(1280x960) 4Mbps 1.8GB 43.2GB 303GB 1.21TB 7.26TB
720P(1280x720) 2Mbps 900MB 21.09GB 147.66GB 632.8GB 3.7TB
VGA(640x480) 1536kbps 675MB 15.8GB 110.6GB 474GB 2.78TB
2CIF(704x288) 1024kbps 450MB 10.5GB 73.5GB 315GB 1.85TB

Note: 1Mbps = 1024 kbps; 1024Mbps = 1GByte

Disclaim: only for reference, the an outcome calculated through software/table is based upon regular H.264 codec, after several years" improvement, we reckon that the H.264 video compression performance has been substantially improved, therefore data may not precise for today"s H.264 IP cameras and DVRs/NVRs. 

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