15 GB to TB
15 gigabytes to terabytes
Decimal (SI) — what most people mean
15 GB = 0.015 TB
Binary (IEC): 15 GB = 0.0146 TB
In the decimal standard (used by storage makers and Google), 1 GB = 1000 of the next unit down, so 15 GB = 0.015 TB. Operating systems use the binary standard (×1024), giving 0.0146 TB.
gigabytes to terabytes table
Decimal (SI) values.
| GB | TB |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 5 GB | 0.005 TB |
| 10 GB | 0.01 TB |
| 15 GB | 0.015 TB |
| 100 GB | 0.1 TB |
| 500 GB | 0.5 TB |
| 1000 GB | 1 TB |
Convert any size
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Frequently asked questions
How many terabytes is 15 GB?+
15 GB equals 0.015 TB using the decimal (SI) standard that drive makers and Google use, or 0.0146 TB using the binary standard that operating systems use.
Why are there two answers?+
Storage is measured two ways: decimal (1 TB = 1000 of the next unit down) and binary (1 TB = 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.