Conversions

Data Storage Converter

Convert digital storage between bytes, kilobytes, megabytes, gigabytes and terabytes using decimal units.

Free online toolWorks in your browserNo sign-up required

Data Storage Converter

Enable JavaScript to use the interactive calculator; the example and formula are described below.

Explore this topic

Pace, Speed & Unit Conversions

Running and walking pace, speed relationships and common everyday unit-conversion formulas.

Topic hub →

How to use this data storage converter

Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.

Formula and method

Decimal storage uses powers of 1,000: 1 MB = 1,000,000 bytes.

Example

Convert 500 GB to TB or 25 MB to bytes.

What this calculator is useful for

Convert digital storage between bytes, kilobytes, megabytes, gigabytes and terabytes using decimal units. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.

Decimal storage units used by this calculator

The calculator uses decimal SI-style storage units: 1 KB = 1,000 bytes, 1 MB = 1,000,000 bytes, 1 GB = 1,000,000,000 bytes and 1 TB = 1,000,000,000,000 bytes. This is the convention commonly used by drive manufacturers and many network/storage specifications.

Converted value = input × (from-unit bytes) ÷ (to-unit bytes)

Decimal vs. binary storage

Binary units such as KiB, MiB and GiB are based on powers of 1,024 and are not the same as the KB, MB and GB values used on this page. For example, 500 GB equals 0.5 TB using decimal units, while 25 MB equals 25,000,000 bytes. Check which convention a software program or device uses when matching reported capacities.

Data Storage Converter: a practical example

One decimal gigabyte equals 1,000 megabytes; the converter uses decimal units (base 1,000).

What the result means

Decimal GB is different from binary GiB, which is based on powers of 1,024.

Limits to consider

Operating systems and device makers may report storage capacities using different conventions.

Related tools: Length Converter · Weight Converter

Frequently asked questions

What does the Data Storage Converter calculate?

Convert digital storage between bytes, kilobytes, megabytes, gigabytes and terabytes using decimal units.

How does the calculation work?

Decimal storage uses powers of 1,000: 1 MB = 1,000,000 bytes.

Is this calculator free?

Yes. ERICH Calculators is free to use and no account is required.

Transparency

Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.