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Source - Petabit

Petabit (Pbit) - Definition and Overview

What is Petabit?

One Petabit is equal to 10^15 or 1000^5 Bits. Petabit is a decimal unit defined as per SI standard. 1 Petabit = 1000 Terabits. The unit symbol for Petabit is Pbit. Petabit is not same as Pebibit (Pib) that contains 1024^5 bits. 1000 Petabits = 1 Exabit (Ebit).

Summary

  • A Petabit (Pb) is a unit of digital information storage used to denote the size of data
  • It is based on the decimal system, which is used in telecommunications and networking
  • One Petabit is equal to 1,000,000,000,000,000 bits, or 1000 Terabits
  • This unit is part of the International System of Units (SI).

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: September 1, 2026

I am a Storage Technologist with strong experience in enterprise storage systems, Angular development, and web-based tools. I enjoy building practical calculators, converters, and utilities, and I also create original cartoons. I share my tools, articles, and creative work on my personal website, rajeshvu.com.