Petabyte to Terabyte Converter

Data Converter

21 units available

Decimals:

From

To

1,024

1 PB = 1,024 TB

Formula:

TB = PB × 1,024

With your value: 1 PB = 1,024 TB

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 Terabyte conversions

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

Petabyte to Terabyte Conversion Table

Petabyte (PB)	Terabyte (TB)
0.5	512
1	1,024
2	2,048
5	5,120
10	10,240
15	15,360
20	20,480
25	25,600
50	51,200
100	102,400
250	256,000
500	512,000
1000	1,024,000

Terabyte to Petabyte Conversion Table

Terabyte (TB)	Petabyte (PB)
0.5	0.000488
1	0.000977
2	0.001953
5	0.004883
10	0.009766
15	0.014648
20	0.019531
25	0.024414
50	0.048828
100	0.097656
250	0.244141
500	0.488281
1000	0.976563

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

Terabyte (TB)

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 Terabyte

To convert from Petabyte (PB) to Terabyte (TB), multiply the value by 1,024.

Formula: TB = PB × 1,024

Reverse: PB = TB × 0.0009765625

Step-by-Step Example

Start with your value in Petabyte. For example: 5 PB
Multiply by the conversion factor: 5 x 1,024
The result is: 5,120 TB

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 Terabyte

The terabyte (TB) is a unit of digital storage. One terabyte equals 1.099512 × 10^+12 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 Terabyte are in 1 Petabyte?

There are exactly 1,024 Terabyte in 1 Petabyte. This means the conversion factor from Petabyte to Terabyte is 1,024.

What is the formula to convert Petabyte to Terabyte?

The formula to convert Petabyte to Terabyte is: TB = PB × 1,024. For example, to convert 10 Petabyte to Terabyte, you would multiply 10 by 1,024.

What is a Petabyte?