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Convert Gigabytes to Terabytes

One gigabyte equals 0.000976562 terabytes. Type any value to convert gigabytes to terabytes instantly — with a full reference table below.

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Convert Gigabytes to Terabytes

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ToolFeather · data storage
Formula

How to convert Gigabytes to Terabytes

To convert gigabytes to terabytes, multiply by 0.000976562. One gigabyte equals 0.000976562 TB, and one terabyte equals 1,024 GB.

  1. Take the value in gigabytes — for example 3 GB.
  2. Multiply by 0.000976562 (the number of terabytes in one gigabyte).
  3. 3 × 0.000976562 = 0.00292969 TB.

Quick mental estimate: Divide the number of gigabytes by 1,024 — that is exact.

Gigabytes to Terabytes conversion table

GigabytesTerabytes
1 GB0.000976562 TB
2 GB0.00195312 TB
4 GB0.00390625 TB
5 GB0.00488281 TB
8 GB0.0078125 TB
10 GB0.00976562 TB
16 GB0.015625 TB
20 GB0.0195312 TB
32 GB0.03125 TB
50 GB0.0488281 TB
64 GB0.0625 TB
100 GB0.0976562 TB
128 GB0.125 TB
256 GB0.25 TB
512 GB0.5 TB
1,024 GB1 TB
TerabytesGigabytes
1 TB1,024 GB
2 TB2,048 GB
4 TB4,096 GB
5 TB5,120 GB
8 TB8,192 GB
10 TB10,240 GB
16 TB16,384 GB
20 TB20,480 GB
32 TB32,768 GB
50 TB51,200 GB
64 TB65,536 GB
100 TB102,400 GB
128 TB131,072 GB
256 TB262,144 GB
512 TB524,288 GB
1,024 TB1,048,576 GB

About converting Gigabytes to Terabytes

Gigabytes (GB) and Terabytes (TB) are both units of data storage. The exact factor is 1 GB = 0.000976562 TB, so multiply by 0.000976562 to go from gigabytes to terabytes (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Terabytes to Gigabytes converter, or the full unit converter for every unit at once.

Binary vs decimal: why your drive looks smaller

Windows and RAM reports count in powers of 1,024 (binary, sometimes written KiB/MiB/GiB); drive makers, macOS and mobile carriers count in powers of 1,000 (decimal). Same bytes, two answers:

GigabytesTerabytes (binary · Windows)Terabytes (decimal · on the box)
1 GB0.000976562 TB0.001 TB
2 GB0.00195312 TB0.002 TB
4 GB0.00390625 TB0.004 TB
5 GB0.00488281 TB0.005 TB
8 GB0.0078125 TB0.008 TB
10 GB0.00976562 TB0.01 TB
16 GB0.015625 TB0.016 TB
20 GB0.0195312 TB0.02 TB
32 GB0.03125 TB0.032 TB
50 GB0.0488281 TB0.05 TB

Example: a “1 TB” drive holds 10¹² bytes, which Windows shows as about 931 GB.

Real-world data storage in gigabytes and terabytes

ExampleGigabytesTerabytes
A CD0.683594 GB0.000667572 TB
A single-layer DVD (4.7 GB)4.377216 GB0.00427463 TB
A 50 GB dual-layer Blu-ray46.56613 GB0.0454747 TB

“≈” marks typical values; the rest are defined or measured figures.

The units

Gigabytes (GB)

Here, 1,024 MB = 1,073,741,824 bytes (GiB). Decimal gigabyte = 1,000,000,000 bytes.

Used for: Phone storage, mobile data, RAM.

Terabytes (TB)

Here, 1,024 GB = 1,099,511,627,776 bytes (TiB). Decimal terabyte = 10¹² bytes.

Used for: Hard drives and cloud storage.

This page uses binary units (1 KB = 1,024 bytes), which is how Windows and most RAM reports count. Storage makers and macOS use decimal units (1 kB = 1,000 bytes), so both are shown below.

Frequently asked questions

5 answers
How many terabytes are in one gigabyte?
One gigabyte equals 0.000976562 terabytes.
How do I convert gigabytes to terabytes?
Multiply the number of gigabytes by 0.000976562. For example, 10 gigabytes = 0.00976562 terabytes.
What is 5 gigabytes in terabytes?
5 gigabytes is 0.00488281 terabytes.
Is a gigabyte bigger than a terabyte?
No. One gigabyte is 0.000976562 of a terabyte — it takes 1,024 gigabytes to make one terabyte.
How many terabytes is a single-layer DVD?
A single-layer DVD is 0.00427463 terabytes (4.377216 gigabytes).