Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes and petabytes instantly. Type a value, pick the units, and the result updates as you type.
Uses binary units: 1 KB = 1,024 bytes, 1 MB = 1,024 KB, and so on.
How to Use
- Type the value you want to convert.
- Choose the unit you are converting from.
- Choose the unit you want to convert to.
- Read the result — it updates live as you type.
Key Features
- Seven units — bits through to petabytes.
- Live conversion — no button needed, results update instantly.
- Binary units — 1 KB = 1,024 bytes, as operating systems report them.
- Readable numbers — thousand separators and tidy decimals.
- 100% private — runs entirely in your browser; nothing is sent or stored.
FAQs
Is 1 KB 1,000 or 1,024 bytes?
This tool uses 1,024 bytes per kilobyte (binary units), which matches how operating systems report file and storage sizes.
How many bits are in a byte?
Eight. A byte is the standard group of 8 bits used to represent a single character of text.
Why do hard drives show less than advertised?
Manufacturers often count 1 GB as 1,000 MB while your system counts 1,024 MB — so a “1 TB” drive shows about 931 GB in binary units.
Is my data sent anywhere?
No. The conversion runs entirely in your browser and never transmits or saves your entries.
Related Tools
Try these related tools: Unit Converter, Number Base Converter and Timestamp Converter.