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Conversions

Data Storage Converter

Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes instantly.

What is Data Storage Converter?

A data storage converter lets you switch between units of digital information, from bits and bytes up to petabytes. Storage sizes appear in product specs (GB, TB), file sizes (MB), and network speeds (Mbps). This converter uses binary prefixes where 1 KB = 1024 bytes, which is standard for file sizes in operating systems.

How to use

  1. 1 Enter the data size value in the Value field.
  2. 2 Select the unit you are converting from in the From dropdown.
  3. 3 Select the unit you want in the To dropdown.
  4. 4 The converted result and a full comparison table appear instantly.
  5. 5 Use the swap button to reverse the conversion.

Formula

converted = input_value * (factor_of_from_unit / factor_of_to_unit), where all factors are expressed in bits and use binary (1024-based) prefixes

Example calculation

To convert 2 GB to MB: 2 GB × 1024 MB/GB = 2048 MB. To express 2 GB in bits: 2 × 1024^3 bytes × 8 bits/byte = 17,179,869,184 bits.

Frequently asked questions

How many bytes are in a kilobyte?

In binary terms (as used by operating systems and this converter), 1 kilobyte = 1024 bytes. In SI decimal terms, 1 kilobyte = 1000 bytes. Hard drive manufacturers often use the decimal definition, which is why a drive labelled 500 GB shows less in your OS.

What is the difference between a bit and a byte?

A bit is the smallest unit of digital data, representing a 0 or 1. A byte is 8 bits and can represent 256 distinct values. Storage capacities are measured in bytes; network speeds are typically measured in bits per second.

How many GB is 1 TB?

Using binary prefixes: 1 TB = 1024 GB. Using decimal prefixes (common on storage device labels): 1 TB = 1000 GB. The difference adds up — a 1 TB drive shows roughly 931 GB in Windows.

What is a petabyte?

A petabyte is 1024 terabytes or approximately 1 quadrillion bytes. Large cloud providers and data centres measure their storage in petabytes. The entire printed collection of the US Library of Congress is estimated at around 10 terabytes.

Why do storage manufacturers and operating systems disagree on drive sizes?

Manufacturers use decimal (1 KB = 1000 B) while operating systems use binary (1 KB = 1024 B). A drive marketed as 1 TB contains 1,000,000,000,000 bytes, which equals about 931 GiB in binary terms.