Free File & Data Tools
File Size Converter
Convert bytes across decimal and binary KB, MB, GB, KiB, MiB, and GiB units.
What this tool does
The calculator makes the base-1000 and base-1024 distinction explicit rather than treating MB and MiB as interchangeable.
Convert bytes across decimal and binary KB, MB, GB, KiB, MiB, and GiB units.
The calculator makes the base-1000 and base-1024 distinction explicit rather than treating MB and MiB as interchangeable.
Use the tool
Convert file-size units
Enter a value and source unit.
Value and source unit
Live result
500 MB
Decimal megabytes
- Bytes
- 500,000,000
- Kilobytes
- 500,000
- Gigabytes
- 0.5
- Mebibytes
- 476.84
- Gibibytes
- 0.47
How to use it
Three quick steps
- 1Enter a value and source unit.
- 2Review all equivalent decimal and binary units.
- 3Verify the result in its real production context. Operating systems and services may label binary quantities with decimal names, so displayed values can differ.
Worked example
Example: File Size Converter
Convert a 524,288,000-byte delivery file into MB and MiB.
FAQ
Questions about the file size converter
Practical details about using the tool and understanding its result.
Keep working
Related tools
Video File-size Calculator
Estimate final video storage from duration plus average video and audio bitrates.
Open toolAudio File-size Calculator
Estimate compressed audio storage from duration and average encoded bitrate.
Open toolImage Compressor
Reduce JPEG, PNG, and WebP file sizes locally while controlling the output format and quality.
Open toolFrom one asset to the whole workflow
Keep this decision connected to the work, feedback, and final approval.
Draftroom keeps projects, creative files, feedback, revisions, and approvals connected in one workspace.