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Petabyte to Megabyte Converter

Type a value — the answer appears instantly. 1 PB = 1,000,000,000 MB.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

1,000,000,000 megabytes

= 1,000,000 GB= 1E15 B

equals 1,000,000,000 megabytes

Formula: MB = PB × 1000000000

Petabyte to Megabyte formula

MB = PB × 1000000000

Convert 5 petabytes to megabytes

  1. Start with 5 petabytes.
  2. Multiply by the conversion factor: 5 × 1,000,000,000 = 5,000,000,000.
  3. So 5 PB = 5,000,000,000 MB.

Petabyte to Megabyte conversion table

Petabyte to Megabyte conversion table
Petabytes (PB)Megabytes (MB)
0.01 PB10,000,000 MB
0.1 PB100,000,000 MB
0.25 PB250,000,000 MB
0.5 PB500,000,000 MB
1 PB1,000,000,000 MB
2 PB2,000,000,000 MB
3 PB3,000,000,000 MB
4 PB4,000,000,000 MB
5 PB5,000,000,000 MB
6 PB6,000,000,000 MB
7 PB7,000,000,000 MB
8 PB8,000,000,000 MB
9 PB9,000,000,000 MB
10 PB10,000,000,000 MB
15 PB15,000,000,000 MB
20 PB20,000,000,000 MB
25 PB25,000,000,000 MB
30 PB30,000,000,000 MB
40 PB40,000,000,000 MB
50 PB50,000,000,000 MB
75 PB75,000,000,000 MB
100 PB100,000,000,000 MB
250 PB250,000,000,000 MB
500 PB500,000,000,000 MB
1,000 PB1,000,000,000,000 MB
5,000 PB5,000,000,000,000 MB
10,000 PB10,000,000,000,000 MB

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 megabyte?

The megabyte (decimal) is one million bytes (1000²) under the SI convention. Photos, songs, and documents are commonly sized in megabytes. It differs from the mebibyte, which is 1,048,576 bytes.

Frequently asked questions

How many megabytes are in one petabyte?

One petabyte equals 1,000,000,000 megabytes (1 PB = 1,000,000,000 MB).

How do I convert petabytes to megabytes?

Multiply the value in petabytes by 1,000,000,000. For example, 10 PB × 1,000,000,000 = 10,000,000,000 MB.

Which is bigger — a petabyte or a megabyte?

A petabyte is bigger: one petabyte contains 1,000,000,000 megabytes.

Is this petabyte to megabyte 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.