# Petabyte

Updated: 03/05/2023 by Computer Hope

A petabyte, PByte, or PB, equals 1,000,000,000,000,000 (1015) bytes.

Tip

When the "b" is lowercase, like Pb, this refers to a petabit.

## What comes before a petabyte?

A terabyte comes before a petabyte.

## What comes after a petabyte?

An exabyte comes after a petabyte.

## Petabyte vs. other data measurements

Using this chart, you can find how many petabytes are in other measurements. For example, you can see 1,000 petabytes in an exabyte. For measurements that are smaller than a petabyte, the decimal value is shown.

PB (petabyte) Value
Petabyte in a Bit (b) 0.000000000000001
Petabyte in a Nibble (N) 0.000000000000001
Petabyte in a Byte (B) 0.000000000000000001
Petabyte in a Kilobit (Kb) 0.000000000000125
Petabyte in a Kilobyte (KB) 0.000000000001
Petabyte in a Kibibit (Kib) 1.279918085e-13
Petabyte in a Kibibyte (KiB) 1.02396068e-12
Petabyte in a Megabit (Mb) 0.000000000125
Petabyte in a Megabyte (MB) 0.000000001
Petabyte in a Mebibit (Mib) 1.310787783e-10
Petabyte in a Mebibyte (MiB) 1.048547761e-09
Petabyte in a Gigabit (Gb) 0.000000125
Petabyte in a Gigabyte (GB) 0.000001
Petabyte in a Gibibit (Gib) 1.342101731e-07
Petabyte in a Gibibyte (GiB) 1.073741334e-06
Petabyte in a Terabit (Tb) 0.000125
Petabyte in a Terabyte (TB) 0.001
Petabyte in a Tebibit (Tib) 0.0001374389084
Petabyte in a Tebibyte (TiB) 0.001099511267
Petabyte in a Petabit (Pb) 0.111022
Petabyte in a Petabyte (PB) 1
Petabyte in a Pebibit (Pib) 0.888178
Petabyte in a Pebibyte (PiB) 1.1259
Petabytes in an Exabit (Eb) 125
Petabytes in an Exabyte (EB) 1,000
Petabytes in an Exbibit (Eib) 144.115188
Petabytes in an Exbibyte (EiB) 1,152.9215
Petabytes in a Zettabyte (ZB) 1,000,000
Petabytes in a Yottabyte (YB) 1,000,000,000