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Data Converter

Convert bits, bytes, kilobytes, megabytes, gigabytes and more.

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About Data Units

Digital data measures information storage and transmission. The base unit is the bit (binary digit, 0 or 1), with 8 bits making 1 byte — the smallest addressable unit in modern computing. This converter handles all major data units: bytes and decimal multiples (kilobyte = 1,000 B, megabyte = 10⁶ B, gigabyte = 10⁹ B, terabyte = 10¹² B, petabyte = 10¹⁵ B used by storage manufacturers), and binary multiples (KiB = 1,024 B, MiB, GiB, TiB used by operating systems — the source of the famous '1 TB drive shows 931 GB free' discrepancy). Network speeds use bits per second multiples (Mbps = megabits per second, Gbps): note that 100 Mbps internet equals 12.5 MB/s download speed because 1 byte = 8 bits. Use data conversion for storage capacity, file sizes, network bandwidth, mobile data plans, and cloud-storage planning. Modern smartphones store tens to hundreds of GB; large data centers manage petabytes.

Popular Data Conversions

Most-used tools

Bit (b) Conversions

About Bit →

The bit is the smallest unit of digital information, used in network speeds and information-theory calculations.

Byte (B) Conversions

About Byte →

The byte equals 8 bits and is the smallest addressable storage unit in modern computing and digital systems.

Kilobyte (KB) Conversions

About Kilobyte →

The kilobyte equals 1,000 bytes and was the standard file size for documents and programs in early computing.

Megabyte (MB) Conversions

About Megabyte →

The megabyte is the everyday unit for image files, songs, and small documents on personal computers.

Gigabyte (GB) Conversions

About Gigabyte →

The gigabyte is the standard unit for smartphone storage, mobile data plans, and modern application sizes.

Terabyte (TB) Conversions

About Terabyte →

The terabyte is the standard unit for hard drives, video archives, and consumer cloud-storage subscriptions.

Petabyte (PB) Conversions

About Petabyte →

The petabyte rates large data centers, scientific archives, and major social-media storage systems worldwide.

Megabit per Second (Mbps) Conversions

About Megabit per Second →

Megabits per second is the standard unit for internet speeds, network bandwidth, and ISP connection ratings.

Data Conversion Tips

  • 8 bits = 1 byte. Storage usually quoted in bytes; network bandwidth in bits.
  • 1 KB is ambiguous: 1000 bytes (SI) in networking and drives, 1024 bytes (binary) in RAM and OS.
  • A 1 Gbps connection transfers ~125 MB/s (divide Mbps by 8 to approximate MB/s).
  • File sizes: MB usually 1024 KB in OS, 1000 KB on disc packaging.

Common Data Mistakes

  • Confusing bits (b) and bytes (B) — 8× difference.
  • Assuming 1 GB drive holds 1 billion bytes — OS-formatted shows less (binary interpretation).
  • Mixing Mbps (network) with MB/s (file transfer) — factor of 8.
  • Ignoring compression and overhead in real-world transfer speeds.

Other Measurement Categories

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