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Convert terabytes to gigabytes (TB to GB)

Type a value in terabytes or in gigabytes: the other field updates as you type. Below you will find the formula, a worked example and a TB to GB chart.

Updated on

1 TB = 1,000 GB

How to convert terabytes to gigabytes

Formula: GB = TB × 1,000

Worked example: 2 TB → 2 × 1,000 = 2,000 GB

Divide gigabytes by 1,000 to get terabytes. A phone with 256 GB of storage holds about a quarter of a terabyte.

Terabytes to gigabytes conversion chart

Terabytes (TB)Gigabytes (GB)
1 TB1,000 GB
2 TB2,000 GB
3 TB3,000 GB
4 TB4,000 GB
5 TB5,000 GB
8 TB8,000 GB
10 TB10,000 GB
16 TB16,000 GB
20 TB20,000 GB
25 TB25,000 GB
32 TB32,000 GB
50 TB50,000 GB
64 TB64,000 GB
100 TB100,000 GB
128 TB128,000 GB
250 TB250,000 GB
256 TB256,000 GB
500 TB500,000 GB
512 TB512,000 GB
1,000 TB1,000,000 GB
1,024 TB1,024,000 GB

What is a terabyte?

The terabyte is one trillion bytes, or 1,000 GB. Hard drives, SSDs and cloud backups are sold in TB. A 1 TB drive holds about 250,000 photos of 4 MB.

What is a gigabyte?

The gigabyte is one billion bytes, the usual unit for phone storage, RAM and mobile data plans. An hour of HD streaming video uses roughly 1.5 to 3 GB depending on the service and quality.

Frequently asked questions

How many gigabytes are in a terabyte?

A terabyte equals 1,000 gigabytes. To convert any value, multiply the number of terabytes by 1,000.

How do you convert terabytes to gigabytes?

Use the formula GB = TB × 1,000. Example: 2 TB → 2 × 1,000 = 2,000 GB.

How many terabytes are in a gigabyte?

A gigabyte equals 0.001 terabytes. That is the reverse conversion, from gigabytes to terabytes.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.