Why does the converter use 1024 instead of 1000?

Computers use binary (base-2) system, so 1 KB = 1024 bytes. This is the correct conversion for file sizes and storage capacity in operating systems.

What's the difference between binary and decimal systems?

Binary (1024-based) is used by computers and operating systems. Decimal (1000-based) is used by storage manufacturers for marketing purposes.

Can I convert very large file sizes?

Yes, the converter supports very large numbers up to petabytes (PB). Results are displayed with appropriate precision for each size range.

Is this tool free to use?

Yes, our data size converter is completely free with no limitations, no registration required, and no hidden costs.

Does it work on mobile devices?

Yes, the data size converter is fully responsive and works perfectly on smartphones, tablets, and all mobile devices.

Can I save or export my conversions?

Yes, you can copy results to clipboard or download the complete conversion as a text file for your records.

What's the largest unit supported?

The converter supports up to petabytes (PB), which is 1024 terabytes. This covers virtually all practical file size and storage needs.

Why do hard drive sizes seem smaller than advertised?

Manufacturers use decimal (1000-based) for marketing, but operating systems use binary (1024-based) for actual capacity calculations.

Is my data secure when using this tool?

Yes, all calculations happen locally in your browser. Your file size data never leaves your device or gets sent to any servers.

Can I use decimal numbers?

Yes, the tool accepts decimal numbers and provides precise results for partial file sizes and detailed calculations.

Data Size Converter

Decode digital storage mysteries with precision conversions between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes. Essential for IT professionals, content creators, and anyone managing file sizes, storage capacity, and bandwidth calculations across metric and binary systems.

data

bytes

kilobytes

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Quick Presets

Common storage sizes for quick reference

Input & Settings

Enter value, choose units, and run conversion in one step.

Data Size Value

From Unit

To Unit

How it works: Converts data sizes using the binary system (1024-based) which is the standard for computer storage calculations.

Binary vs Decimal Systems

Understanding the difference between computer storage and marketing measurements

Binary System (Computer)

1 KB =1,024 bytes

1 MB =1,024 KB

1 GB =1,024 MB

Used by operating systems and file systems for actual storage capacity

Decimal System (Marketing)

1 KB =1,000 bytes

1 MB =1,000 KB

1 GB =1,000 MB

Used by manufacturers for marketing and packaging

💡 This converter uses the binary system (1024-based) which is correct for computer storage calculations. Hard drive manufacturers use decimal (1000-based) for marketing, which is why your drive may show less capacity than advertised.

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