PB to ZB Calculator - Convert Petabytes to Zettabytes

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PB to ZB - Conversion Formula and Steps

Petabyte and Zettabyte are units of digital information used to measure storage capacity and data transfer rate. Both are decimal units. One Petabyte is equal to 1000^5 bytes. One Zettabyte is equal to 1000^7 bytes. There are 1,000,000 Petabytes in one Zettabyte. - view the difference between both units

PB to ZB Converter Image
Source Data UnitTarget Data Unit
Petabyte (PB)
Equal to 1000^5 bytes
(Decimal Unit)
Zettabyte (ZB)
Equal to 1000^7 bytes
(Decimal Unit)

Below conversion diagram will help you to visualize the Petabyte to Zettabyte calculation steps in a simplified manner.

÷ 8   
÷ 1000   
÷ 1000   
÷ 1000   
÷ 1000   
÷ 1000   
÷ 1000   
÷ 1000   
÷ 1000   
Bit [b]
Byte [B]
Kilobyte [kB]
Megabyte [MB]
Gigabyte [GB]
Terabyte [TB]
Petabyte [PB]
Exabyte [EB]
Zettabyte [ZB]
Yottabyte [YB]
  x 8  
  x 1000  
  x 1000  
  x 1000  
  x 1000  
  x 1000  
  x 1000  
  x 1000  
  x 1000  

The formula of converting the Petabyte to Zettabyte is represented as follows :

ZB = PB / 10002

Now let us apply the above formula and, write down the steps to convert from Petabyte (PB) to Zettabyte (ZB). This way, we can try to simplify and reduce to an easy to apply formula.


Zettabyte = Petabyte / 10002


Zettabyte = Petabyte / (1000x1000)


Zettabyte = Petabyte / 1000000


Zettabyte = Petabyte x (1 / 1000000)


Zettabyte = Petabyte x 0.000001

Example : If we apply the above Formula and steps, conversion from 10 PB to ZB, will be processed as below.

  1. = 10 / 10002
  2. = 10 / (1000x1000)
  3. = 10 / 1000000
  4. = 10 x (1 / 1000000)
  5. = 10 x 0.000001
  6. = 0.00001
  7. i.e. 10 PB is equal to 0.00001 ZB.

(Result rounded off to 40 decimal positions.)

You can use above formula and steps to convert Petabyte to Zettabyte using any of the programming language such as Java, Python or Powershell.

Popular PB Conversions

Conversion Units

Definition : Petabyte

A Petabyte (PB) is a unit of digital information that is equal to 1,000,000,000,000,000 bytes (or 8,000,000,000,000,000 bits) and commonly used to measure the storage capacity of enterprise storage arrays and data centers. It is also used to express data transfer speeds and in the context of data storage and memory, the binary-based unit of Pebibyte (PiB) is used instead.
- Learn more..

Definition : Zettabyte

A Zettabyte (ZB) is a unit of measurement for digital information storage. It is equal to 1,000,000,000,000,000,000,000 (one sextillion) bytes. It is commonly used to measure the storage capacity of large data centers, computer hard drives, flash drives, and other digital storage devices.
- Learn more..

Excel Formula to convert from PB to ZB

Apply the formula as shown below to convert from Petabyte to Zettabyte.

1Petabyte (PB)Zettabyte (ZB) 
21=A2 * 0.000001 

Download - Excel Template for Petabyte to Zettabyte Conversion

If you want to perform bulk conversion locally in your system, then download and make use of above Excel template.

Python Code for PB to ZB Conversion

You can use below code to convert any value in Petabyte to Zettabyte in Python.

petabyte = int(input("Enter Petabyte: "))
zettabyte = petabyte / (1000*1000)
print("{} Petabyte = {} Zettabyte".format(petabyte,zettabyte))

The first line of code will prompt the user to enter the Petabyte as an input. The value of Zettabyte is calculated on the next line, and the code in third line will display the result.

PB to ZB to ZiB Conversion Table