Unit Converters

Gigabytes to Terabytes Converter

Type a value in gigabytes to get it in terabytes, and see the reverse conversion.

By TheCalcTools Updated Formula checked and tested

Your numbers

Your results

Converted value
Terabytes (TB)
—
1 GB in TB
—
Your number read as TB, in GB
—
Tebibytes (binary) (TiB)
—
Megabytes (MB)
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Gigabytes to Terabytes Converter by TheCalcTools

How the Gigabytes to Terabytes Converter works

Storage makers use 1 TB = 1,000 GB. A “1 TB” drive holds about 0.909 TiB, which Windows reports as “931 GB”.

To convert gigabytes to terabytes, multiply by 0.001. The calculator shows the result to 6 significant figures; the conversion factor itself is exact by definition.

Quick estimate in your head: divide by 1,000.

The formula

TB = GB × 0.001GB = TB ÷ 0.001

Worked example

Using the default values shown in the calculator:

Value in gigabytes (GB)500
  1. 500 GB × 0.001 = 0.5 TB.

Result:

Terabytes (TB)0.5
1 GB in TB0.001
Your number read as TB, in GB500000
Tebibytes (binary) (TiB)0.454747
Megabytes (MB)500000

Conversion table

GBTB
128 GB0.128 TB
256 GB0.256 TB
500 GB0.5 TB
512 GB0.512 TB
1,000 GB1 TB
2,000 GB2 TB
4,000 GB4 TB
8,000 GB8 TB

Frequently asked questions

What is 1 gigabyte in terabytes?

1 gigabyte (GB) equals 0.001 TB.

Sources and further reading

Megabytes to Gigabytes ConverterType a value in megabytes to get it in gigabytes, and see the reverse conversion Data Storage ConverterWhy a 500 GB drive shows up smaller in your operating system, answered in numbers RAID Capacity CalculatorFind out how much usable space your drives give you under each RAID level Megabits per second to Megabytes per second ConverterType a value in megabits per second to get it in megabytes per second, and see the…

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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.