How to convert gigabytes to terabytes
To convert a measurement in gigabytes to terabytes, multiply the value by 0.001. The conversion factor comes from the relationship between both units and the byte.
For example, to convert 5 GB to terabytes: 5 × 0.001 = 0.005 TB.
What is a gigabyte?
A gigabyte is 1,000,000,000 bytes (1,000 megabytes) under the SI decimal convention. The binary equivalent of 1,073,741,824 bytes is the gibibyte (GiB). The gigabyte became the standard consumer storage unit with the rise of hard drives, USB sticks, and smartphones. Drive makers market capacity in decimal gigabytes, while operating systems often report in binary gibibytes, which is why a '500 GB' drive shows as about 465 GB.
Common uses of gigabytes include: Hard drive, SSD, and USB flash storage capacity; Smartphone and tablet storage tiers; HD video and large software installs; RAM and memory-card sizing.
What is a terabyte?
A terabyte is 1,000,000,000,000 bytes (1,000 gigabytes) under the SI decimal convention. The binary equivalent of 1,099,511,627,776 bytes is the tebibyte (TiB). The terabyte moved from data-center jargon to the home as hard drives crossed the 1 TB mark in 2007. It is now the common unit for desktop drives and network-attached storage.
Common uses of terabytes include: Desktop hard drives and external backup drives; Network-attached storage (NAS) systems; Large media and photo libraries; Video production and archival storage.
When you need to convert gigabytes to terabytes
As media and backup libraries grow, people convert gigabytes to terabytes to plan drive purchases. Adding up several 250 GB folders to see if they fit a 1 TB drive is a routine check; decimally, 1,000 GB equals 1 TB.
Gigabytes to terabytes worked examples
Here are some common values converted:
1 GB = 0.001 TB 5 GB = 0.005 TB 10 GB = 0.01 TB 50 GB = 0.05 TB 100 GB = 0.1 TB
Frequently asked questions
How many terabytes are in one gigabyte?
One gigabyte (GB) equals 0.001 terabytes (TB). Multiply any value in gigabytes by 0.001 to convert to terabytes.
How do I convert gigabytes to terabytes?
Multiply the value in gigabytes by 0.001. For example, 5 GB × 0.001 = 0.005 TB.
How do I convert terabytes to gigabytes?
Multiply the value in terabytes by 1,000, or divide by 0.001. Use the swap button on the converter above to reverse the direction.
Is the gigabyte to terabyte conversion exact?
Decimal units (KB, MB, GB) use powers of 1000 per SI; binary units (KiB, MiB, GiB) use powers of 1024 per IEC. Both are exact — just be sure you are using the right family, since storage is often sold in decimal but reported by operating systems in binary.
What is the formula for gigabytes to terabytes?
The formula is: TB = GB × 0.001. This comes from the definition of both units relative to the byte.