---
title: "Petabytes to Bytes — PB to B converter"
description: "1 petabyte = 1 × 10^15 bytes. Convert petabytes to bytes with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/pb-to-bytes/
site: "At One Place"
---

# Petabytes to bytes

**1 petabyte in bytes: 1 PB = 1 × 10^15 B**

B = PB × 1 × 10^15

To convert petabytes to bytes, multiply by 1 × 10^15. The table below gives the values people look up most often, and the converter works for any number.

## Petabytes to bytes table

*Common petabyte values converted to bytes.*

| Petabytes | Bytes |
| --- | --- |
| 1 PB | 1 × 10^15 |
| 2 PB | 2 × 10^15 |
| 3 PB | 3 × 10^15 |
| 4 PB | 4 × 10^15 |
| 5 PB | 5 × 10^15 |
| 10 PB | 1 × 10^16 |
| 15 PB | 1.5 × 10^16 |
| 20 PB | 2 × 10^16 |
| 25 PB | 2.5 × 10^16 |
| 30 PB | 3 × 10^16 |
| 40 PB | 4 × 10^16 |
| 50 PB | 5 × 10^16 |
| 75 PB | 7.5 × 10^16 |
| 100 PB | 1 × 10^17 |
| 250 PB | 2.5 × 10^17 |
| 500 PB | 5 × 10^17 |
| 1,000 PB | 1 × 10^18 |

## How the conversion works

The relationship is B = PB × 1 × 10^15. Both units measure data, so the conversion is a fixed factor that never changes.

## Common questions

### How many bytes are in one petabyte?

One petabyte equals 1 × 10^15 bytes. B = PB × 1 × 10^15.

### How do you convert petabytes to bytes?

Use B = PB × 1 × 10^15. So 10 PB is 1 × 10^16 B.

### How many petabytes are in one byte?

One byte equals 1 × 10^-15 petabytes, which is the reverse of the conversion above.

## Related pages

- [Bytes to Petabytes](https://atoneplace.net/convert/bytes-to-pb/)
- [Petabytes to Kilobytes](https://atoneplace.net/convert/pb-to-kb/)
- [Petabytes to Megabytes](https://atoneplace.net/convert/pb-to-mb/)
- [Petabytes to Gigabytes](https://atoneplace.net/convert/pb-to-gb/)
- [Petabytes to Terabytes](https://atoneplace.net/convert/pb-to-tb/)
- [Petabytes to Bits](https://atoneplace.net/convert/pb-to-bits/)
- [Petabytes to Megabits](https://atoneplace.net/convert/pb-to-megabits/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)