Zettabytes (ZB) to Petabytes (PB) Converter
Convert zettabytes to petabytes.
1 ZB = 1,000,000 PB
How to convert ZB to PB
File sizes here use the decimal (SI) system, the same one drive makers and network providers use. In that system 1 Zettabyte is 1021 bytes and 1 Petabyte is 1015 bytes. Divide one by the other and you get the ratio between the two units: 1021 ÷ 1015 = 106.
Zettabyte is the bigger unit, so you multiply. Every ZB holds 1,000,000 PB, which means the decimal point moves 6 places to the right.
On the ladder (B → KB → MB → GB → TB → PB → EB → ZB → YB → RB → QB) these two are 2 steps apart. Every step is a factor of 1,000, so 2 steps means 1,000 multiplied by itself 2 times, which is 106.
The formula
PB = ZB × 1,000,0001 ZB = 1,000,000 PB
Worked example 1: Converting 1 ZB
1 ZB × 1,000,000 = 1,000,000 PBThe decimal point moves 6 places to the right.
Analysts quote the total data created worldwide in a year in zettabytes.
Worked example 2: Converting 0.5 ZB
0.5 ZB × 1,000,000 = 500,000 PBThe decimal point moves 6 places to the right.
Worked example 3: Converting 12.75 ZB
12.75 ZB × 1,000,000 = 12,750,000 PBThe decimal point moves 6 places to the right.
Need the other direction? Open the PB to ZB converter.
ZB to PB examples
Analysts quote the total data created worldwide in a year in zettabytes. In petabytes that is 1,000,000 PB.
| ZB | PB |
|---|---|
| 1 ZB | 1,000,000 PB |
| 2.5 ZB | 2,500,000 PB |
| 10 ZB | 10,000,000 PB |
| 50 ZB | 50,000,000 PB |
| 100 ZB | 100,000,000 PB |
| 500 ZB | 500,000,000 PB |
| 1,000 ZB | 1,000,000,000 PB |
Where ZB to PB comes up
A zettabyte is 1,000 exabytes, or a trillion gigabytes. Zettabytes appear in market reports and forecasts about how much data the world creates, copies and stores each year.
A petabyte is 1,000 terabytes, or a million gigabytes. Petabytes belong to data centres, research archives, big analytics warehouses and the storage side of large cloud services.
Going from zettabytes down to petabytes always gives a bigger number, because the unit you land on is smaller. It is the usual direction when a limit or a form asks for a smaller unit than the one you have in mind.
ZB to PB FAQ
How many petabytes are in 1 zettabyte?
There are 1,000,000 petabytes in 1 zettabyte, so 1 ZB = 1,000,000 PB.
Is ZB to PB decimal or binary?
This page is decimal (SI), where 1 KB = 1,000 B. Operating systems often count in powers of 1,024 and still print KB, MB or GB, when they really mean KiB, MiB and GiB. At ZB the two systems differ by about 18.1%.
How do I convert PB to ZB?
Go the other way: divide by 1,000,000, which moves the decimal point 6 places to the left. The swap button on the converter does it for you.