100 TB to GB
100 terabytes to gigabytes
Decimal (SI) — what most people mean
100 TB = 100000 GB
Binary (IEC): 100 TB = 102400 GB
In the decimal standard (used by storage makers and Google), 1 TB = 1000 of the next unit down, so 100 TB = 100000 GB. Operating systems use the binary standard (×1024), giving 102400 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 |
| 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 100 TB?+
100 TB equals 100000 GB using the decimal (SI) standard that drive makers and Google use, or 102400 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.