How many terabytes are in one gigabyte?

There are 0.001 terabytes in 1 gigabyte.

How do you convert terabytes to gigabytes?

Multiply the number of terabytes by 1,000 — or use the formula GB = TB × 1,000.

What is 32 terabytes in gigabytes?

32 terabytes is 32,000 gigabytes. 32 × 1,000 = 32,000 gigabytes.

Is the terabytes to gigabytes conversion exact?

Yes. The relationship is fixed by definition, so 1,000 is an exact conversion factor — only the displayed result is rounded.

Terabytes to Gigabytes Converter

Convert terabytes to gigabytes instantly with this free terabytes to gigabytes converter. Enter any value to get an accurate data storage conversion, plus the formula, the conversion factor and a full reference table.

What is 1 terabyte in gigabytes?

1 terabyte is equal to exactly 1,000 gigabytes.

1 × 1,000 = 1,000 gigabytes

Amount

Result1,000

1 terabyte = 1,000 gigabytes

Terabytes to Gigabytes formula

GB = TB × 1,000

The terabytes to gigabytes conversion factor is 1,000, which is exact by definition. 1 terabyte = 1,000 gigabytes, and 1 gigabyte = 0.001 terabytes.

Worked examples

2 terabytes = 2,000 gigabytes — 2 × 1,000 = 2,000 gigabytes
32 terabytes = 32,000 gigabytes — 32 × 1,000 = 32,000 gigabytes
256 terabytes = 256,000 gigabytes — 256 × 1,000 = 256,000 gigabytes

Terabytes to Gigabytes conversion table

Every value below is calculated with the exact conversion factor and rounded for display.

terabytes to gigabytes conversion table
Terabytes (TB)	Gigabytes (GB)
1 TB	1,000 GB
2 TB	2,000 GB
4 TB	4,000 GB
8 TB	8,000 GB
16 TB	16,000 GB
32 TB	32,000 GB
64 TB	64,000 GB
100 TB	100,000 GB
128 TB	128,000 GB
256 TB	256,000 GB
512 TB	512,000 GB
1,000 TB	1,000,000 GB
1,024 TB	1,024,000 GB
2,048 TB	2,048,000 GB

When you need to convert terabytes to gigabytes

Checking whether a file fits inside a storage or upload limit.
Working out how much of a mobile data allowance a download will use.
Reconciling the capacity printed on a drive with the smaller figure the operating system reports.

Getting a feel for the scale

A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.

Gigabyte (GB)

An hour of HD streaming uses about 3 GB
A modern phone photo library is tens of GB

Common mistakes to avoid

Dividing when you should multiply. Because 1 terabyte = 1,000 gigabytes, the answer should be larger than the number you started with.
Treating 1 kB as 1,024 bytes. Storage and network figures use decimal units of 1,000; operating systems usually report binary units of 1,024, which is why a 1 TB drive shows as about 931 GiB.
Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.

How precise does the answer need to be?

Round to two decimals for human-readable sizes. When you are checking a hard limit, use the exact figure: a file 0.4% over an upload cap still fails.

How these units are defined

Terabyte (TB): One trillion bytes in decimal notation. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Gigabyte (GB): 1,000,000,000 bytes in decimal (SI) notation. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.

Frequently asked questions

What is 1 terabyte in gigabytes?: 1 terabyte is equal to 1,000 gigabytes.
How many terabytes are in one gigabyte?: There are 0.001 terabytes in 1 gigabyte.
How do you convert terabytes to gigabytes?: Multiply the number of terabytes by 1,000 — or use the formula GB = TB × 1,000.
What is 32 terabytes in gigabytes?: 32 terabytes is 32,000 gigabytes. 32 × 1,000 = 32,000 gigabytes.
Is the terabytes to gigabytes conversion exact?: Yes. The relationship is fixed by definition, so 1,000 is an exact conversion factor — only the displayed result is rounded.