If you need to calculate a required network traffic, storage space or lens focal length for your video surveillance system and you get tired of ugly online calculators, than this software tool is for you. IP Camera Bandwidth & Disk Space Calculator lets you to calculate required network traffic and storage space for your network camera based video surveillance system. Just select a resolution and compression level of your network IP camera (or your CCTV camera connected to DVR) , enter required FPS and number of cameras and the calculator will calculate required bandwidth. If you specify for how long your video records have to be stored (1 day= 24 hours of recording) the tool will give you required HDD storage space. This software tool is a great companion tool for video monitoring software. Why this software is better in compare with online calculators? Our offline calculator is faster, has more convenient user interface and doesn't need a internet connection. Important! Frame size, calculated for specified resolution and compression is an estimated value. Real frame size value highly depends on image complexity, lens and CCD/CMOS quality. To read software review please visit: http://www.video-home-surveillance.com/ipcameracalc/ New feature of the calculator is calculation of lens focal length. Just enter viewing angle and CCD/CMOS sensor size and get focal length.