How many megabytes are in 1 petabyte?

1 petabyte equals 1000000000 MB.

How do I convert megabytes back to petabytes?

Use the reverse converter: 1 megabyte equals 1e-9 PB.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

4 petabytes to megabytes (4 PB to MB)

Open the full petabytes to megabytes converter

Formula

To convert petabytes to megabytes, multiply the value by 1000000000.

MB = PB × 1000000000

How to convert 4 PB to MB

4 PB × 1000000000 = 4000000000 MB

Values near 4 PB

petabytes → megabytes
PB	MB
1	1000000000.0000
2	2000000000.0000
3	3000000000.0000
4	4000000000.0000
5	5000000000.0000
6	6000000000.0000
7	7000000000.0000
8	8000000000.0000
9	9000000000.0000
10	10000000000.0000
11	11000000000.0000
12	12000000000.0000
13	13000000000.0000
14	14000000000.0000
15	15000000000.0000
16	16000000000.0000
17	17000000000.0000
18	18000000000.0000
19	19000000000.0000
20	20000000000.0000
21	21000000000.0000

Decimal vs binary: KB, MB and GB use powers of 1,000 (SI), while KiB, MiB and GiB use powers of 1,024. Storage makers use decimal units; many operating systems and memory sizes use binary ones, which is why a "500 GB" drive shows less space.

About the units

Petabyte (PB): 10^15 bytes in the decimal system, used in data centres and big data.
Megabyte (MB): 1,000,000 bytes in the decimal system, used by storage makers and file sizes.

Frequently asked questions

How do I convert petabytes to megabytes?: To convert petabytes to megabytes, multiply the value by 1000000000.
How many megabytes are in 1 petabyte?: 1 petabyte equals 1000000000 MB.
How many megabytes are in 10 petabytes?: 10 PB equals 10000000000 MB.
How do I convert megabytes back to petabytes?: Use the reverse converter: 1 megabyte equals 1e-9 PB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.