Data Size Unit Converter
Enter a value and unit to convert it into bytes and decimal (KB/MB/GB) and binary (KiB/MiB/GiB) units at once. All calculations happen inside your browser.
How to use
- Enter the value to convert.
- Select the unit of the value.
- Check the results in bytes and decimal/binary units.
Frequently asked questions
What is the difference between KB and KiB?
KB is 1000 bytes (decimal) and KiB is 1024 bytes (binary). Storage devices usually use KB (1000), while operating systems usually use KiB (1024).
Why is the labeled capacity different from the actual capacity?
The difference arises because manufacturers label 1GB as 1 billion bytes (decimal), while operating systems calculate and display 1GiB as about 1.07 billion bytes (binary).
Are the entered values sent to a server?
No. All calculations happen only inside your browser, and the values are never sent to or stored on any server.
Practical example and verification criteria
Data Size Unit Converter: First determine whether this page only calculates a format in the browser or the Tool Web server performs a DNS, port, or public-IP lookup. Do not mix a protocol or path into a hostname. Enter IP, MAC, and port values with the separators and ranges requested by the page, and confirm you are authorized to query the target.
Data Size Unit Converter: For a quick check, start with 1 GiB ↔ 1024 MiB as a small input whose result relationship you can verify directly. Confirm that the input summary, units, and options match your intent before applying the tool to real values or a copy of the source; this reduces setup mistakes.
Data Size Unit Converter: DNS caches, firewalls, NAT, proxies, and the lookup server's location can make results differ from observations on your device or another network. Recheck the same target with operating-system commands or an authorized management console. Location data is approximate, and a port response alone cannot establish that a service is secure.
Data Size Unit Converter · Work record: For real work, record the input conditions, selected options, and result together. Do not assume the same state will remain after a refresh or device change. Preserve important results separately using copy, download, a screenshot, or another method the page supports, then reopen them in the target environment.
Data Size Unit Converter · Error check: If an error or unexpected result appears, reduce the input, run again with default options, and then change one condition at a time. Recording error messages and boundary values helps distinguish format issues, unsupported cases, and browser resource limits, and prevents an empty result from being mistaken for success.
Data Size Unit Converter · Scope of use: Check the page guidance for browser processing versus server lookup, storage location, and supported scope. Use sensitive source material or secrets only when strictly necessary. High-impact work such as legal, financial, or medical decisions or changes to an operational system requires current authoritative information and a separate verification process.