Video Surveillance Storage Calculator

Leave at 0 if you only want the file size. 1 GB = 1000 MB as sold.
Use this when you already know the file size and only want to know how many fit.
File size
43,200.000 MB
Video Storage Calculator
File size
43.2000 GB
File size as an operating system reports it
40.2331 GiB
File size used for the fit calculation
345,600.000 MB
Whole files that fit
0
Space left over
0.000 MB
Storage per hour of recording
14,400.00 MB/h
Worked out from Definition of the bit rate: file size = bit rate x duration, with 8 bits to the byte and 2 other sources.
Capacities here are decimal (1 GB = 1000 MB), which is how cards and drives are sold; an operating system will report a smaller GiB figure for the same device. Variable bit rate encoding also means real files vary around the average.

How this is worked out

3 steps
  1. File size = 4 Mbit/s x 86400 s / 8 = 43200 MB (43.2 GB), x 8 streams = 345600 MB.
  2. No capacity given, so nothing is fitted into a card or drive.
  3. Continuous recording uses 14400 MB per hour.

Results are general information, not financial, tax, legal, medical or engineering advice.