File Size Upload Converter
Upload or drag any file to see its exact size in bytes, KB, MB, GB and TB instantly.
Upload a File
Drag & drop a file here, or click to browse
Any file type supported
Your files are processed locally and never uploaded or stored
File Size
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Manual Conversion
Result
Decimal (SI): —
Binary (IEC): —
Exact value: —
Quick convert to:
How It Works
Upload or drag any file to see its exact size in bytes, KB, MB, GB and TB instantly.
Frequently Asked Questions
Is my file uploaded to a server?
No. All processing happens entirely in your browser. Your file never leaves your device.
What file types are supported?
Any file type — images, videos, PDFs, documents, archives, executables.
What is the maximum file size?
There is no hard limit. Very large files will still work.
Why does the size differ from the file explorer?
File explorers may use binary units (KiB/MiB) while this tool shows both decimal and binary.