12 TB to GB
12 terabytes to gigabytes
Decimal (SI) — what most people mean
12 TB = 12000 GB
Binary (IEC): 12 TB = 12288 GB
In the decimal standard (used by storage makers and Google), 1 TB = 1000 of the next unit down, so 12 TB = 12000 GB. Operating systems use the binary standard (×1024), giving 12288 GB.
terabytes to gigabytes table
Decimal (SI) values.
| TB | GB |
|---|---|
| 1 TB | 1000 GB |
| 2 TB | 2000 GB |
| 5 TB | 5000 GB |
| 10 TB | 10000 GB |
| 12 TB | 12000 GB |
| 100 TB | 100000 GB |
Convert any size
Need a different value or unit? The full data storage converter handles bits, bytes, KB, MB, GB, TB and PB.
Frequently asked questions
How many gigabytes is 12 TB?+
12 TB equals 12000 GB using the decimal (SI) standard that drive makers and Google use, or 12288 GB using the binary standard that operating systems use.
Why are there two answers?+
Storage is measured two ways: decimal (1 GB = 1000 of the next unit down) and binary (1 GB = 1024). Hard-drive and SSD capacities are advertised in decimal, while Windows and other systems report sizes in binary — which is why a "1 TB" drive shows as about 931 GB in your operating system.