Data Storage Converter
Enter a data size, pick your From and To units, and get the converted value instantly.
Overview
"1 KB" means two different things depending on context: storage manufacturers and most software use the decimal definition (1 KB = 1000 bytes), while some operating systems and memory specs use the binary definition (1 KiB = 1024 bytes) — historically also just called "KB," which is exactly the ambiguity that causes a purchased drive to show less free space than its label. This tool keeps the two systems explicitly separate: KB/MB/GB/TB are decimal, KiB/MiB/GiB are binary, so a conversion is never accidentally mixing the two.
Examples
Decimal
1 gigabyte to megabytes
1000 megabytes
Binary
1 gibibyte to mebibytes
1024 mebibytes
Cross-system
1 gigabyte to gibibytes
0.931323 gibibytes
How It Works
- Enter the value you want to convert.
- Choose the From unit and the To unit — decimal (KB/MB/GB/TB) or binary (KiB/MiB/GiB).
- The converted value appears instantly.
Use Cases
Storage math
Work out why a "1 TB" drive shows roughly 931 GiB of usable space in your operating system.
File and bandwidth sizing
Convert a file size or download speed between bits, bytes, and larger units.
Tips
- A bit is one-eighth of a byte — use it when converting network bandwidth figures (often quoted in bits per second) against file sizes (quoted in bytes).
FAQ
No. Every conversion runs locally in your browser.
Drive manufacturers label capacity in decimal terabytes (1 TB = 10¹² bytes), but operating systems typically report free space in binary units labeled the same way — actually tebibytes. Convert 1 TB to TiB with this tool to see the exact difference.