Question: how much information can a terabyte hold?
Answer: So how many gigabytes or megabytes are in a terabyte? 1 TB equals 1,000 gigabytes (GB) or 1,000,000 megabytes (MB). Now, let's compare that to physical storage devices we use everyday. Compared to the average smartphone, 1 TB of storage is the same as roughly 8 (128 GB) iPhones or Samsung Galaxy devices.