Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » Quick Reference »

File Size Conversion Table

Giga, mega, tera, kilo? What do they mean? Use this quick reference chart to compare computer data file sizes.

The file size conversion table below shows the relationship between the file storage sizes that computers use. Binary calculations are based on units of 1,024, and decimal calculations are based on units of 1,000. It should be noted that decimal calculations are based on units that have been rounded off to the nearest 1,000 and therefore differ from the actual number of bytes used in binary calculations.

Name Symbol Binary
Measurement
Decimal
Measurement
Number of Bytes Equal to
kilobyte KB 2^10 10^3 1,024 1,024 bytes
megabyte MB 2^20 10^6 1,048,576 1,024KB
gigabyte GB 2^30 10^9 1,073,741,824 1,024MB
terabyte TB 2^40 10^12 1,099,511,627,776 1,024GB
petabyte PB 2^50 10^15 1,125,899,906,842,624 1,024TB
exabyte EB 2^60 10^18 1,152,921,504,606,846,976 1,024PB
zettabyte ZB 2^70 10^21 1,180,591,620,717,411,303,424 1,024EB
yottabyte YB 2^80 10^24 1,208,925,819,614,629,174,706,176 1,024ZB






TECH RESOURCES FROM OUR PARTNERS
LATEST ARTICLES
Slideshow: 5 Hot Holiday Gifts for Tech Enthusiasts

From cute electronic toys to VR gaming, here are 5 hot gifts to give to your special tech enthusiast this holiday season. Read More »

What's Hot in Tech: AI Tops the List

Like everything in technology, AI touches on so many other trends, like self-driving cars and automation, and Big Data and the Internet of Things... Read More »

DevOp's Role in Application Security

As organizations rush to release new applications, security appears to be getting short shrift. DevSecOps is a new approach that holds promise. Read More »

STUDY GUIDES
Java Basics, Part 1

Java is a high-level programming language. This guide describes the basics of Java, providing an overview of syntax, variables, data types and... Read More »

Java Basics, Part 2

This second Study Guide describes the basics of Java, providing an overview of operators, modifiers and control Structures. Read More »

The 7 Layers of the OSI Model

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »