The Tool Hive LogoThe Tool Hive

Tools

Network Tools

Text Tools

Data Tools

Design Tools

Development Tools

Code Tools

Security Tools

Utility Tools

About

Categories

  1. Home
  2. Tools
  3. Utility Tools
  4. Data Size Converter
The Tool Hive Logo

The Tool Hive

A comprehensive collection of free, browser-first tools for developers. Network requests only occur when a tool makes them explicit.

Tools

Text ToolsData ToolsDesign ToolsNetwork ToolsDevelopment Tools

Resources

AboutPrivacy PolicyTerms of Service

Contact Us

Having any issues? Wish to request a tool or feature? Contact us here.

Email Us

© 2026 The Tool Hive. All rights reserved.

PrivacyTermsCookies

Data Size Converter

Convert between bytes, KB/MB/GB (decimal) and KiB/MiB/GiB (binary), and bits, synced live.

Common sizes

Precision (significant digits)

8

Base units

1 byte = 8 bits

Bits

b

Bytes

B

Decimal · SI (×1000)

1 KB = 1000 B

Kilobytes

KB

Megabytes

MB

Gigabytes

GB

Terabytes

TB

Petabytes

PB

Binary · IEC (×1024)

1 KiB = 1024 B

Kibibytes

KiB

Mebibytes

MiB

Gibibytes

GiB
editing

Tebibytes

TiB

Pebibytes

PiB

Exact bytes

1,073,741,824

Exact bits

8,589,934,592

Decimal vs. binary — which is which?

Decimal (SI) units step by 1000: 1 KB = 1000 B, 1 MB = 1000 KB. Used by storage vendors, network speeds and macOS/Linux disk sizes.

Binary (IEC) units step by 1024: 1 KiB = 1024 B, 1 MiB = 1024 KiB. Used for RAM and by Windows (which labels binary sizes as "KB/MB/GB").

The gap grows with scale: 1 GiB is 1,073,741,824 B, about 7.4% larger than 1 GB (1,000,000,000 B).