The HDD of NVR Calculator is a free tool that allows you to determine how many days of video can be stored on your NVR, or determines how much storage is needed in order to archive the number of days, as specified. Options allow you to specify the number of security cameras and number of frames per second to record.

Select Camera Type : Analog cameraIP Camera


Recording Channels:

Recording Rate (FPS):

Recording Hours per Day:

Compression Mode:H.265H.264

Compression Bit Rate:

Recording Type:Record AlwaysMotion Only

Calculator Type:
Day Calculator : Enter amount of storage availableStorage Calculator : Enter the number of days required to archive

The Bandwidth Calculator is a free tool that allows you to determine how much bandwidth is necessary to view a given amount of live viewing or recorded surveillance video from Internet or LAN and helps identify any bottlenecks related to bandwidth usage.

Select Network Type :

Transmission Channels :

Maximum FPS :

File Size : K Byte/ Frame

The Camera Lens Calculator is a free tool that will help you in determining the surveillance camera lens size, or camera lens focal length or field of view needed based on your desired configures.

Please select the sensor type first

Calculation of object size
Please enter:

Focal length (f) : mm

Object distance (D) : Meters

Calculation of focal length
Please enter:

Object width (W) : mm

Object distance (D) : Meters

Object height (H) : M

Object distance (D) : M

Calculation of angle of view
Please enter:

Focal length (f) : mm

The power transmission distance of EPOC via Multi cables calculation formula is a free tool that will allow you to estimate the approximate running distance between the Switching Hub and IP camera site base on the using cable and input power source (Voltage and Watt). Please download the Power Calculator.