Zettabytes (ZB) to Megabytes (MB) Converter
Convert zettabytes to megabytes.
1 ZB = 1,000,000,000,000,000 MB
How to convert ZB to MB
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 Megabyte is 106 bytes. Divide one by the other and you get the ratio between the two units: 1021 ÷ 106 = 1015.
Zettabyte is the bigger unit, so you multiply. Every ZB holds 1015 MB, which means the decimal point moves 15 places to the right.
On the ladder (B → KB → MB → GB → TB → PB → EB → ZB → YB → RB → QB) these two are 5 steps apart. Every step is a factor of 1,000, so 5 steps means 1,000 multiplied by itself 5 times, which is 1015.
The formula
MB = ZB × 10151 ZB = 1 × 1015 MB1015 means 1 followed by 15 zeros
Worked example 1: Converting 1 ZB
1 ZB × 1015 = 1 × 1015 MBThe decimal point moves 15 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 × 1015 = 500,000,000,000,000 MBThe decimal point moves 15 places to the right.
Worked example 3: Converting 12.75 ZB
12.75 ZB × 1015 = 1.275 × 1016 MBThe decimal point moves 15 places to the right.
Need the other direction? Open the MB to ZB converter.
ZB to MB examples
Analysts quote the total data created worldwide in a year in zettabytes. In megabytes that is 1 × 1015 MB.
| ZB | MB |
|---|---|
| 1 ZB | 1 × 1015 MB |
| 2.5 ZB | 2.5 × 1015 MB |
| 10 ZB | 1 × 1016 MB |
| 50 ZB | 5 × 1016 MB |
| 100 ZB | 1 × 1017 MB |
| 500 ZB | 5 × 1017 MB |
| 1,000 ZB | 1 × 1018 MB |
Where ZB to MB 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 megabyte is 1,000 kilobytes, about a minute of MP3 audio at 128 kbps. Megabytes are what you see on photos, PDFs, songs and slide decks, and they sit behind most email attachment and upload limits.
Going from zettabytes down to megabytes 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 MB FAQ
How many megabytes are in 1 zettabyte?
There are 1015 megabytes in 1 zettabyte, so 1 ZB = 1015 MB.
Is ZB to MB 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 MB to ZB?
Go the other way: divide by 1015, which moves the decimal point 15 places to the left. The swap button on the converter does it for you.