Petabyte to Gigabyte Converter

Data Converter

21 units available

Decimals:

From

To

1,048,576

1 PB = 1,048,576 GB

Formula:

GB = PB × 1,048,576

With your value: 1 PB = 1,048,576 GB

How big is that?

Everyday references on a logarithmic scale, all expressed in petabyte so you can sanity-check the result.

Phone photo (1/2.8e+8 your value)4.44e-10 PB

MP3 song (1/2.3e+8 your value)5.55e-10 PB

CD-ROM (1/1.6e+6 your value)7.77e-8 PB

HD movie (1/2.8e+5 your value)4.44e-7 PB

Laptop SSD (1/2.2e+3 your value)0.0000568 PB

Your value0.125 PB

Other Petabyte to Gigabyte conversions

2 PB to GB 3 PB to GB 4 PB to GB 5 PB to GB 6 PB to GB 7 PB to GB 8 PB to GB

Petabyte to Gigabyte Conversion Table

Petabyte (PB)	Gigabyte (GB)
0.5	524,288
1	1,048,576
2	2,097,152
5	5,242,880
10	10,485,760
15	15,728,640
20	20,971,520
25	26,214,400
50	52,428,800
100	104,857,600
250	262,144,000
500	524,288,000
1000	1,048,576,000

Gigabyte to Petabyte Conversion Table

Gigabyte (GB)	Petabyte (PB)
0.5	4.768372e-7
1	9.536743e-7
2	1.907349e-6
5	4.768372e-6
10	9.536743e-6
15	1.430511e-5
20	1.907349e-5
25	2.384186e-5
50	4.768372e-5
100	9.536743e-5
250	0.000238
500	0.000477
1000	0.000954

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Petabyte (PB)

Data

Conventional value

Decimal prefixes (kB, MB) are powers of 1000; binary prefixes (KiB, MiB) are powers of 1024 as standardised by IEC 80000-13.

Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology

International Electrotechnical Commission · Reviewed 2026-07-01

Gigabyte (GB)

Data

Conventional value

Decimal prefixes (kB, MB) are powers of 1000; binary prefixes (KiB, MiB) are powers of 1024 as standardised by IEC 80000-13.

Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology

International Electrotechnical Commission · Reviewed 2026-07-01

How to Convert Petabyte to Gigabyte

To convert from Petabyte (PB) to Gigabyte (GB), multiply the value by 1,048,576.

Formula: GB = PB × 1,048,576

Reverse: PB = GB × 9.536743e-7

Step-by-Step Example

Start with your value in Petabyte. For example: 5 PB
Multiply by the conversion factor: 5 x 1,048,576
The result is: 5,242,880 GB

About Petabyte

The petabyte (PB) is a unit of digital storage. One petabyte equals 1.125900 × 10^+15 bytes. UnitConvertLab converts it against every other data unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: data calculations, engineering and science, education.

About Gigabyte

The gigabyte (GB) is a unit of digital storage. One gigabyte equals 1.073742 × 10^+9 bytes. UnitConvertLab converts it against every other data unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: data calculations, engineering and science, education.

Frequently Asked Questions

How many Gigabyte are in 1 Petabyte?

There are exactly 1,048,576 Gigabyte in 1 Petabyte. This means the conversion factor from Petabyte to Gigabyte is 1,048,576.

What is the formula to convert Petabyte to Gigabyte?

The formula to convert Petabyte to Gigabyte is: GB = PB × 1,048,576. For example, to convert 10 Petabyte to Gigabyte, you would multiply 10 by 1,048,576.

What is a Petabyte?