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Petabyte to Byte Converter

Type a value — the answer appears instantly. 1 PB = 1E15 B.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

1E15 bytes

= 1,000,000 GB= 1,000,000,000 MB

equals 1E15 bytes

Formula: B = PB × 1000000000000000

Petabyte to Byte formula

B = PB × 1000000000000000

Convert 5 petabytes to bytes

  1. Start with 5 petabytes.
  2. Multiply by the conversion factor: 5 × 1E15 = 5E15.
  3. So 5 PB = 5E15 B.

Petabyte to Byte conversion table

Petabyte to Byte conversion table
Petabytes (PB)Bytes (B)
0.01 PB10,000,000,000,000 B
0.1 PB100,000,000,000,000 B
0.25 PB250,000,000,000,000 B
0.5 PB500,000,000,000,000 B
1 PB1E15 B
2 PB2E15 B
3 PB3E15 B
4 PB4E15 B
5 PB5E15 B
6 PB6E15 B
7 PB7E15 B
8 PB8E15 B
9 PB9E15 B
10 PB1E16 B
15 PB1.5E16 B
20 PB2E16 B
25 PB2.5E16 B
30 PB3E16 B
40 PB4E16 B
50 PB5E16 B
75 PB7.5E16 B
100 PB1E17 B
250 PB2.5E17 B
500 PB5E17 B
1,000 PB1E18 B
5,000 PB5E18 B
10,000 PB1E19 B

Unit definitions

What is a petabyte?

The petabyte (decimal) is 1000⁵ bytes, or one thousand terabytes. It is used for data-centre storage, scientific datasets, and cloud infrastructure. Large tech platforms handle many petabytes of data.

What is a byte?

The byte is eight bits, the basic addressable unit of computer memory and storage. One byte can represent a single text character in older encodings. It is the reference unit from which kilobytes, megabytes, and their binary counterparts are built.

Frequently asked questions

How many bytes are in one petabyte?

One petabyte equals 1E15 bytes (1 PB = 1E15 B).

How do I convert petabytes to bytes?

Multiply the value in petabytes by 1E15. For example, 10 PB × 1E15 = 1E16 B.

Which is bigger — a petabyte or a byte?

A petabyte is bigger: one petabyte contains 1E15 bytes.

Is this petabyte to byte converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.