How do I convert petabytes back to bytes?

Use the reverse converter: 1 petabyte equals 1e+15 B.

Is this converter accurate?

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

Bytes to Petabytes Converter (B to PB)

Formula

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

PB = B × 1e-15

Example calculation

Convert 10 B to PB:

10 B × 1e-15 = 1e-14 PB

Conversion table

bytes → petabytes
B	PB
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-14
15	1.5e-14
20	2e-14
25	2.5e-14
30	3e-14
35	3.5e-14
40	4e-14
45	4.5e-14
50	5e-14
55	5.5e-14
60	6e-14
65	6.5e-14
70	7e-14
75	7.5e-14
80	8e-14
85	8.5e-14
90	9e-14
95	9.5e-14
100	1e-13
200	2e-13
500	5e-13
1000	1e-12

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

Byte (B): Eight bits, the basic unit of computer storage and the size of one character in many encodings.
Petabyte (PB): 10^15 bytes in the decimal system, used in data centres and big data.

Frequently asked questions

How do I convert bytes to petabytes?: To convert bytes to petabytes, multiply the value by 1e-15.
How many petabytes are in 1 byte?: 1 byte equals 1e-15 PB.
How many petabytes are in 10 bytes?: 10 B equals 1e-14 PB.
How do I convert petabytes back to bytes?: Use the reverse converter: 1 petabyte equals 1e+15 B.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.