Free file size converter and checker
Convert storage units such as MB, MiB and GB, or check selected files’ byte sizes and total for free. Files are not sent to a server.
Check file sizes
Only file size metadata is checked. File contents are not read or uploaded, and originals are not changed. Inputs and results are not kept on a server or in browser storage.
Result
| Unit | Value |
|---|
| Filename | Bytes |
|---|
About this tool
MB means 1,000,000 bytes; MiB means 1,048,576 bytes. Different units can display different numbers for the same file.
Only file size metadata is checked. File contents are not read or uploaded, and originals are not changed. Inputs and results are not kept on a server or in browser storage.
Unit conversion does not compress or modify a file. Disk allocation, download traffic and compressed output sizes are not calculated.
File size conversion FAQ
1Is this tool free?
Yes. There is no fee or account requirement. You can check up to 1,000 files per selection and select another batch whenever needed.
2What is the difference between MB and MiB?
MB means 1,000,000 bytes; MiB means 1,048,576 bytes. Different units can display different numbers for the same file.
3Are file contents read or uploaded?
Only file size metadata is checked. File contents are not read or uploaded, and originals are not changed. Inputs and results are not kept on a server or in browser storage.
4Does converting units make a file smaller?
Unit conversion does not compress or modify a file. Disk allocation, download traffic and compressed output sizes are not calculated.