Free data storage converter — bytes, KB, MB, GB, TB and KiB/MiB/GiB/TiB with clear decimal/binary labels.
Data storage converter
Base unit: B · 12 units
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The QuickToolz Data Storage Converter translates between every digital storage unit — bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), petabytes (PB), plus the binary equivalents KiB, MiB, GiB, TiB, PiB. We always label decimal (×1000) vs binary (×1024) explicitly so you avoid the most common storage-math mistake.
Operating systems are inconsistent: Windows reports drive sizes in binary (1 KB = 1024 B), while macOS, Linux, and storage marketing use decimal (1 KB = 1000 B). That’s why a "1 TB" hard drive shows as "931 GiB" in Windows. We label both clearly.
Everything you need, nothing you don’t. Built for speed and simplicity.
Type into any data storage field — every other field updates live.
Supports B, KB/KiB, MB/MiB, GB/GiB, TB/TiB, PB/PiB.
Live updates as you type — no calculate button.
Everything you need, nothing you don’t. Built for speed and simplicity.
Enter a number in any unit — the other units update instantly.
Got questions? We’ve got answers. Common questions about Data Storage Converter.
Uses official SI and NIST conversion factors.
The converter is bi-directional — type into any field.
One-click copy for the unit you need.