Hard Drive Calculator

Estimate how many TB you need. Put camera count, quality and recording days, then press calculate.

Number of cameras

Days of recording

Video quality

Recording mode

24/7 continuous Motion-based (lower storage)

Motion recording varies a lot by site. We use a conservative estimate for motion-based recording.

How CCTV storage is calculated (simple)

Storage depends on how much data each camera records per second. Higher resolution and higher bitrate = larger hard drive. If you want help selecting a recorder and drive, use our installation quotation form — we’ll recommend the right recorder and drive size.