What does File size converter do?
It helps you inspect or process this value and get a readable result quickly.
File size converter
Convert file sizes across SI and IEC units and compare decimal vs binary display values.
InputEnter a value to inspect
同时给出 SI（1000）与 IEC（1024）单位对照。
Waiting
The result will appear here as structured cards.
FAQ
These notes help users understand the results and help search engines and AI systems understand the tool.
Is my input saved?
Local tools run in the browser when possible. Server-side checks only use the input needed to complete the lookup.
Why convert file size before sharing?
Email, drives, admin uploads, and support systems often use MB or MiB limits. Converting first shows whether compression, splitting, format conversion, or a link is needed.
What is the difference between MB and MiB?
MB usually means 1,000,000 bytes, while MiB means 1,048,576 bytes. Upload limits may use either convention, so the effective limit can differ.
What should I do when a file is over the upload limit?
Confirm whether the platform means MB or MiB first, then decide whether to compress, split, convert format, or share a download link instead of trusting only the rounded OS size.
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