Terabytes to Gigabytes Converter TB → GB

1 terabyte (TB) = 1000 gigabytes (GB). Type a value below — the conversion happens instantly, entirely on your device.

From

1 TB = 1000 GB

Precision

1 terabytes = 1000 gigabytes

1 × 1000 = 1000

1 TB equals 1000 GB, so multiplying by 1000 converts the value. The result describes the exact same quantity — only the measuring stick changes.

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How to convert terabytes to gigabytes

gigabytes = terabytes × 1000 — multiply the terabyte value by 1000.

Example: 10 TB = 10,000 GB.

To convert the other way: terabytes = gigabytes ÷ 1000 — or use the dedicated GB to TB converter .

Terabytes to Gigabytes conversion table

Terabytes (TB)	Gigabytes (GB)
0.1	100
0.25	250
0.5	500
1	1000
2	2000
3	3000
4	4000
5	5000
6	6000
7	7000
8	8000
9	9000
10	10,000
15	15,000
20	20,000
25	25,000
30	30,000
40	40,000
50	50,000
75	75,000
100	100,000
250	250,000
500	500,000
1000	1,000,000

About the units

What is a terabyte?

A terabyte (TB) is 1,000 gigabytes (decimal standard). Hard drives and cloud storage tiers are commonly 1–4 TB; a 1 TB drive appears as about 931 GiB in Windows.

What is a gigabyte?

A gigabyte (GB) is 1,000,000,000 bytes (decimal standard). Storage devices and mobile data plans are sold in gigabytes; an hour of HD streaming uses roughly 3 GB.

Frequently asked questions

How many gigabytes are in 1 terabyte?

1 terabyte (TB) = 1000 gigabytes (GB).

What is the formula to convert terabytes to gigabytes?

gigabytes = terabytes × 1000 — multiply the terabyte value by 1000.

How do I convert TB to GB without a calculator?

Multiply by 1000 for a close estimate. Exact factor: 1 TB = 1000 GB.

Is this TB-to-GB converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.