How do I convert bytes back to petabytes?

Use the reverse converter: 1 byte equals 1e-15 PB.

Is this converter accurate?

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

Petabytes to Bytes Converter (PB to B)

Formula

To convert petabytes to bytes, multiply the value by 1e+15.

B = PB × 1e+15

Example calculation

Convert 10 PB to B:

10 PB × 1e+15 = 1e+16 B

Conversion table

petabytes → bytes
PB	B
1	1e+15
2	2e+15
3	3e+15
4	4e+15
5	5e+15
6	6e+15
7	7e+15
8	8e+15
9	9e+15
10	1e+16
15	1.5e+16
20	2e+16
25	2.5e+16
30	3e+16
35	3.5e+16
40	4e+16
45	4.5e+16
50	5e+16
55	5.5e+16
60	6e+16
65	6.5e+16
70	7e+16
75	7.5e+16
80	8e+16
85	8.5e+16
90	9e+16
95	9.5e+16
100	1e+17
200	2e+17
500	5e+17
1000	1e+18

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.
Byte (B): Eight bits, the basic unit of computer storage and the size of one character in many encodings.

Frequently asked questions

How do I convert petabytes to bytes?: To convert petabytes to bytes, multiply the value by 1e+15.
How many bytes are in 1 petabyte?: 1 petabyte equals 1e+15 B.
How many bytes are in 10 petabytes?: 10 PB equals 1e+16 B.
How do I convert bytes back to petabytes?: Use the reverse converter: 1 byte equals 1e-15 PB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.