💾 Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB and PB.
About this tool
Converts between digital storage units — bits, bytes, KB, MB, GB, TB, and PB — using the binary convention where 1 GB = 1024 MB, matching how operating systems typically report file and drive sizes.
Useful for comparing file sizes, drive capacities, and download sizes across units.
Worked example
A 4.7 GB DVD is about 4,812.8 MB, and a 500 GB drive is about 0.488 TB.
How to use it
- Enter a value.
- Choose the unit you're converting from.
- Choose the unit you want, and press Convert.
Tips
- Storage manufacturers often advertise capacity using decimal (1000-based) units, while operating systems report it in binary (1024-based) units — this is why a "1 TB" drive shows as roughly 931 GB in your file explorer.
- This tool uses the binary convention throughout for internal consistency.
- 8 bits = 1 byte, the base building block for every other unit here.
FAQ
Why does my 1 TB drive show less than 1000 GB in Windows?
Manufacturers use decimal units (1 TB = 1,000,000,000,000 bytes) while operating systems typically report binary units (1 TB = 1,099,511,627,776 bytes) — same drive, two different counting conventions.
Does this tool use decimal or binary units?
Binary (1024-based), matching how most operating systems display file and drive sizes.
How many MB is 1 GB here?
1024 MB.
From the blog: getting the most out of this tool
The gap between a drive's advertised capacity and what your computer actually shows is one of the most common "is my storage broken" confusions — it's not a bug, it's two different unit systems being used side by side.
We picked the binary convention here because it matches what you'll see in File Explorer or Finder, which is what most people are actually trying to reconcile when they reach for a converter.