Yottabytes (YB) to Zettabytes (ZB) Converter
Convert yottabytes to zettabytes.
1 YB = 1,000 ZB
How to convert YB to ZB
File sizes here use the decimal (SI) system, the same one drive makers and network providers use. In that system 1 Yottabyte is 1024 bytes and 1 Zettabyte is 1021 bytes. Divide one by the other and you get the ratio between the two units: 1024 ÷ 1021 = 103.
Yottabyte is the bigger unit, so you multiply. Every YB holds 1,000 ZB, which means the decimal point moves 3 places to the right.
These two sit side by side on the ladder (B → KB → MB → GB → TB → PB → EB → ZB → YB → RB → QB), so there is nothing to work out beyond remembering that every step is a factor of 1,000.
The formula
ZB = YB × 1,0001 YB = 1,000 ZB
Worked example 1: Converting 1 YB
1 YB × 1,000 = 1,000 ZBThe decimal point moves 3 places to the right.
No storage system with published figures reaches a yottabyte yet.
Worked example 2: Converting 0.5 YB
0.5 YB × 1,000 = 500 ZBThe decimal point moves 3 places to the right.
Worked example 3: Converting 12.75 YB
12.75 YB × 1,000 = 12,750 ZBThe decimal point moves 3 places to the right.
Need the other direction? Open the ZB to YB converter.
YB to ZB examples
No storage system with published figures reaches a yottabyte yet. In zettabytes that is 1,000 ZB.
| YB | ZB |
|---|---|
| 1 YB | 1,000 ZB |
| 2.5 YB | 2,500 ZB |
| 10 YB | 10,000 ZB |
| 50 YB | 50,000 ZB |
| 100 YB | 100,000 ZB |
| 500 YB | 500,000 ZB |
| 1,000 YB | 1,000,000 ZB |
Where YB to ZB comes up
A yottabyte is 1,000 zettabytes, which is 1024 bytes. Yottabytes are mostly a textbook and forecast unit. You meet them in articles about how large data totals could grow.
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.
Going from yottabytes down to zettabytes 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.
YB to ZB FAQ
How many zettabytes are in 1 yottabyte?
There are 1,000 zettabytes in 1 yottabyte, so 1 YB = 1,000 ZB.
Is YB to ZB 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 YB the two systems differ by about 20.9%.
How do I convert ZB to YB?
Go the other way: divide by 1,000, which moves the decimal point 3 places to the left. The swap button on the converter does it for you.