Storage Units

How to use it

1. Type a value into the Value field - commas in large numbers are tolerated.
2. Pick the Unit the value is expressed in, for example GB or GiB.
3. Both tables update at once: the left one lists decimal units (B to PB, each step x1000), the right one lists binary units (B to TiB, each step x1024).
4. Click Convert to force a re-run, or Clear to reset the form.

Common use cases

• Checking disk marketing numbers - a 1 TB drive shows about 909 GiB in tools that count in powers of two; this explains the gap.
• Sizing downloads and quotas - see what a 500 MB file is in MiB when a tool reports binary units.
• Writing accurate documentation - quote exact SI and IEC values instead of guessing which convention applies.
• Comparing transfer speeds - network tools report in decimal bits and bytes; convert both consistently.

Why it stays private

The conversion is a handful of multiplications done in your browser's memory the moment you type. No value is sent anywhere, and there is nothing to install.

FAQ

Q: Why do KB and KiB differ? A: KB is decimal: 1 KB = 1000 B. KiB is binary: 1 KiB = 1024 B. Operating systems and file managers often show binary values while storage marketing uses decimal ones, which is where the familiar mismatch comes from.

Q: What about bits, like Mb versus MB? A: This tool converts bytes only. Lowercase b usually means bits - divide by 8 yourself before entering a bits value here.

Q: How are very large or very small results shown? A: Values beyond the table range fall back to exponential notation, so nothing overflows or rounds to zero silently.