Convert Petabytes to Bytes
Convert Petabytes to Bytes instantly. 1 Petabyte (PB) equals 1,000,000,000,000,000 Bytes (B).
Petabytes to Bytes conversion table
| Petabytes (PB) | Bytes (B) |
|---|---|
| 1 PB | 1,000,000,000,000,000 B |
| 2 PB | 2,000,000,000,000,000 B |
| 3 PB | 3,000,000,000,000,000 B |
| 5 PB | 5,000,000,000,000,000 B |
| 10 PB | 10,000,000,000,000,000 B |
| 20 PB | 20,000,000,000,000,000 B |
| 50 PB | 50,000,000,000,000,000 B |
| 100 PB | 100,000,000,000,000,000 B |
| 500 PB | 500,000,000,000,000,000 B |
| 1,000 PB | 1,000,000,000,000,000,000 B |
1 Petabyte = 1,000,000,000,000,000 Bytes · multiply Petabytes by 1,000,000,000,000,000
About converting Petabytes to Bytes
Petabytes (PB) and Bytes (B) are both units of digital storage, so converting between them is a single multiplication: multiply your Petabytes figure by 1,000,000,000,000,000. Ten Petabytes comes to 10,000,000,000,000,000 Bytes, and a hundred works out at 100,000,000,000,000,000 Bytes.
Rule of thumb: going from Petabytes to Bytes multiplies, so the figure always grows — one Petabyte is already 1,000,000,000,000,000 Bytes. If your answer came out smaller, you have the conversion the wrong way round.
What is a Petabyte?
A petabyte is a quadrillion bytes, a scale nothing a consumer owns comes close to. It belongs to data centres, archives and scientific instruments: particle physics at CERN, genome banks, and the disk arrays that streaming services and search engines run on. It is also the point at which moving data becomes a physical problem rather than a network one — the first image of a black hole was assembled from petabytes of telescope recordings that had to be flown between observatories on hard drives, because no internet connection could carry them in reasonable time.
What is a Byte?
The byte is the unit computers actually store things in, and it has not always been eight bits. Werner Buchholz coined the word at IBM in 1956, when a byte meant however many bits a particular machine needed to hold one character — six, seven and nine-bit bytes all existed. Eight bits became the standard with the IBM System/360, and the industry never looked back. Because that old ambiguity was real, networking standards still say "octet" when they want to be unmistakable about meaning exactly eight bits.
To put both in perspective: a petabyte is data-centre scale, not anything you own, while a byte holds a single letter of plain text.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Bytes to Petabytes converter, or browse all Digital Storage converters.
Frequently asked questions
How many Bytes are in one Petabyte?
There are 1,000,000,000,000,000 Bytes in one Petabyte.
How do I convert Petabytes to Bytes?
Multiply the number of Petabytes by 1,000,000,000,000,000. For example, 10 Petabytes = 10,000,000,000,000,000 Bytes.
What is 100 Petabytes in Bytes?
100 Petabytes is equal to 100,000,000,000,000,000 Bytes.
How do I convert Bytes to Petabytes?
Multiply the Bytes value by 0 (or divide by 1,000,000,000,000,000).
Is this Petabytes to Bytes conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Petabyte = 1,000,000,000,000,000 Bytes is the complete value — nothing is rounded away.
What is a Petabyte?
A petabyte is a quadrillion bytes, a scale nothing a consumer owns comes close to. It belongs to data centres, archives and scientific instruments: particle physics at CERN, genome banks, and the disk arrays that streaming services and search engines run on. It is also the point at which moving data becomes a physical problem rather than a network one — the first image of a black hole was assembled from petabytes of telescope recordings that had to be flown between observatories on hard drives, because no internet connection could carry them in reasonable time.
What is a Byte?
The byte is the unit computers actually store things in, and it has not always been eight bits. Werner Buchholz coined the word at IBM in 1956, when a byte meant however many bits a particular machine needed to hold one character — six, seven and nine-bit bytes all existed. Eight bits became the standard with the IBM System/360, and the industry never looked back. Because that old ambiguity was real, networking standards still say "octet" when they want to be unmistakable about meaning exactly eight bits.