Digital Storage Converter

Enter the value you want to convert.

Select the unit you are converting from, such as MB, GB, GiB, or bytes.

View the converted value in all supported units.

Adjust the decimal precision to control how many digits appear after the decimal point.

Use the swap control to reverse the selected conversion units.

Copy an individual result using its copy control.

The converter updates the equivalent values as you change the input. You can use it to compare decimal and binary measurements without doing the calculations manually.

Convert digital storage units online with this free Digital Storage Converter. Compare bits, bytes, decimal units such as KB and GB, and binary units such as KiB and GiB. Enter a value, choose a unit, and see its equivalents across all supported units.

The converter uses the correct decimal and binary standards, so you can compare storage capacities without treating KB and KiB as the same unit.

Digital information is measured in bits and bytes.

Bit (b): The smallest basic unit of digital information. A bit can represent either 0 or 1.

Byte (B): A group of 8 bits. File sizes and storage capacities are commonly expressed in bytes and their larger units.

A byte and a bit are not interchangeable. For example, 8 bits equal 1 byte, while 1 MB contains 1,000,000 bytes.

Digital storage measurements use two different prefix systems: decimal SI prefixes and binary IEC prefixes.

Decimal units (SI)

Decimal units use powers of 1,000. They are commonly used for storage device capacities and data measurements.

For example, 1 GB equals 1,000,000,000 bytes.

Binary units (IEC)

Binary units use powers of 1,024. They are often used when describing computer memory and binary-based storage measurements.

For example, 1 GiB equals 1,073,741,824 bytes.

KB and KiB are different

Although their names look similar, KB and KiB represent different quantities:

1 KB = 1,000 bytes

1 KiB = 1,024 bytes

Likewise, 1 GB and 1 GiB are not equal. One gigabyte is 1,000,000,000 bytes, while one gibibyte is 1,073,741,824 bytes.

This distinction helps explain why a storage device advertised as 500 GB may appear as approximately 465.66 GiB when measured using binary units.

These examples show how decimal and binary units relate to each other.

Example 1: A 2.5 MB file

A file measuring 2.5 MB in decimal units contains 2,500,000 bytes. That is approximately 2.3842 MiB.

This difference matters when comparing file sizes reported by applications that use different unit conventions.

Example 2: A 500 GB storage device

A drive advertised with a capacity of 500 GB contains 500,000,000,000 bytes using the decimal standard. The same capacity is approximately 465.66 GiB.

The difference does not mean the drive has lost storage space. It comes from the different definitions of GB and GiB.

Example 3: 16 GiB of memory

A computer with 16 GiB of memory has 17,179,869,184 bytes of memory capacity. This is approximately 17.18 GB when expressed using decimal units.

A storage converter can help when you need to:

Compare advertised storage capacities with values shown by your operating system.

Convert file sizes between bytes, KB, MB, and GB.

Understand memory capacities expressed in MiB or GiB.

Estimate how much data can fit on a storage device.

Compare storage measurements from different applications or technical specifications.