Unit conversion
Data Storage Converter
Convert between bits, bytes, decimal storage units like GB, and binary units like GiB.
Interactive calculator
Convert digital storage units
Compare decimal and binary storage units when you are sizing files, drives, memory, or cloud plans.
Results
Result (GiB)
238.4186
256 GB = 238.4186 GiB
How to use it
- 01Enter the digital storage amount you want to compare.
- 02Choose the source unit and the target unit, including decimal or binary formats.
- 03Read the converted result instantly for file, drive, or memory sizing.
Result guide
- Bytes are used internally as the common conversion base.
- Decimal units like GB differ from binary units like GiB, which is why the output can change meaningfully.
- This is especially useful when comparing advertised drive size with what operating systems report.
About this calculator
Storage conversion matters because device makers, operating systems, and cloud tools often describe the same capacity using different unit systems.
A converter that includes both decimal and binary units is more useful than a basic GB-only tool because it matches real hardware and software naming differences.
Frequently asked questions
Why are GB and GiB different?
GB uses powers of 1000 while GiB uses powers of 1024, so the same storage size can be reported differently depending on the system.
Can this help compare SSD and cloud plan capacities?
Yes. It is useful anywhere capacity is described across different digital unit systems.
Why include bits and bytes together?
Because networking, transfer rates, and storage specs often jump between the two and users need a direct comparison.
Method and limitations
This calculator uses the formula and assumptions described on this page. We do not claim independent professional review. Direct references will be listed here when they support a specific rule or data source used by this calculator.
Results are estimates for general information. Verify current rules and assumptions before making financial, tax, or health decisions.
Read our Editorial and Verification Policy →Related calculators
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