Data Storage Converter

Convert between bytes, KB, MB, GB, TB and their binary units (KiB, MiB, GiB) instantly.

Result
0.001

1 MB = 0.001 GB

GB vs GiB — the 1000 vs 1024 rule

1 GB = 1000 MB · 1 GiB = 1024 MiB

Storage makers count in powers of 1000 (1 GB = 1000 MB), while operating systems usually count in powers of 1024 (1 GiB = 1024 MiB). That gap is why a drive sold as 1 TB shows up as roughly 931 GB on your computer.

Why drives look smaller than the label

On the boxWhat your OS shows
128 GB119.2093 GiB
256 GB238.4186 GiB
512 GB476.8372 GiB
1 TB931.3226 GiB
2 TB1.819 TiB
4 TB3.638 TiB

Every conversion runs in your browser. Nothing you type is uploaded to BroBroGo.

FAQ

Is 1 MB 1000 KB or 1024 KB?

Both conventions exist. Decimal units (KB, MB, GB) are powers of 1000 and are how drives and network speeds are usually labelled. Binary units (KiB, MiB, GiB) are powers of 1024 and are what operating systems and RAM use — so 1 MiB = 1024 KiB, while 1 MB = 1000 KB. This tool has both, so you can convert across the two systems.

Which units are supported?

Bit and byte, the decimal units KB, MB, GB, TB, PB, and the binary units KiB, MiB, GiB, TiB, PiB — in any combination.

Can I convert in both directions?

Yes — pick any two units, or press swap to reverse them instantly.

Understanding Data Storage Conversion

The Data Storage Converter is a free online tool designed to convert data storage units from one format to another. Users can input a numerical value, specify its current unit, and select the target unit for conversion. The tool instantly displays the converted value and switches between decimal systems (based on powers of 1000) and binary systems (based on powers of 1024).

This tool supports conversions in both directions between any two supported units. It is designed to assist consumers who want to understand file sizes or disk capacities, developers, IT support personnel, and procurement or operations staff who need to explain the difference between GB and GiB.

Supported Inputs and Outputs

The tool utilizes specific inputs to perform calculations and provides several output features to help you manage your results:

  • Numerical value: This represents the amount of data storage you wish to convert. The default input value is set to 1. If an invalid input such as abc is entered, the tool displays as the result.
  • Source unit: The current unit of your numerical value. The default source unit is MB.
  • Target unit: The desired unit you want to convert your value into. The default target unit is GB.
  • Converted value: The final result of your conversion.
  • Swap button: A control that instantly reverses the selected source and target units.
  • Copy button: A feature that copies the converted value directly to your system clipboard.
  • Formula explanation: This provides detailed information on the specific formula used to complete the conversion.

The tool supports a wide range of units, including Bit, byte, KB, MB, GB, TB, PB, KiB, MiB, GiB, TiB, and PiB.

Decimal vs. Binary Systems

Data storage is measured using two different mathematical conventions: decimal and binary.

  • Decimal units (such as KB, MB, GB, TB, and PB) are calculated using powers of 1000. For example, when converting 1024 MB to GB using this system, the result is 1.024 GB.
  • Binary units (such as KiB, MiB, GiB, TiB, and PiB) are calculated using powers of 1024. Under this system, converting 1 GiB to GB results in 1.0737 GB.

The difference between these two systems explains why storage capacities can be confusing when moving between hardware specifications and software environments.

Why drives look smaller than the label

A common source of confusion for technology users is why a storage drive appears to have less capacity once it is connected to a computer. This discrepancy is caused by the different measurement systems used by hardware manufacturers and computer operating systems.

Storage manufacturers typically measure drive capacity using the decimal system (powers of 1000), where 1 GB is equal to 1000 MB. Conversely, operating systems usually calculate storage capacity using the binary system (powers of 1024), where 1 GiB equals 1024 MiB.

Because of this difference in calculation, a drive advertised and sold as a 1 TB drive will be reported by an operating system as approximately 931 GB. The following table illustrates how these two standards compare:

On the box What your OS shows
1 TB ~931 GB

Privacy and Browser-Based Processing

Every conversion runs in your browser. Nothing you type is uploaded to BroBroGo.

Frequently Asked Questions

Is 1 MB 1000 KB or 1024 KB? Both conventions exist. Decimal units (KB, MB, GB) are powers of 1000 and are how drives and network speeds are usually labelled. Binary units (KiB, MiB, GiB) are powers of 1024 and are what operating systems and RAM use — so 1 MiB = 1024 KiB, while 1 MB = 1000 KB. This tool has both, so you can convert across the two systems.

Which units are supported? Bit and byte, the decimal units KB, MB, GB, TB, PB, and the binary units KiB, MiB, GiB, TiB, PiB — in any combination.

Can I convert in both directions? Yes — pick any two units, or press swap to reverse them instantly.