Bytes Converter
Convert bytes to KB/MB/GB/TB (and back). Choose decimal (1000-based) or binary (1024-based) units to match your use case.
Enter a value, select input unit + standard, then convert. Negative values are not allowed.
Auto uses 1000 for KB/MB/GB/TB and 1024 for KiB/MiB/GiB/TiB.
| Unit | Value |
|---|
Privacy: runs locally in your browser. No inputs are stored or transmitted.
How it works
Conversions work by converting the input to bytes first, then converting bytes to the target unit.
Decimal: KB = 1000 B, MB = 1000² B, ...
Binary: KiB = 1024 B, MiB = 1024² B, ...
Examples
- 1,048,576 B → 1 MiB (binary)
- 1,000,000 B → 1 MB (decimal)
- 2 GB → 2,000,000,000 B (decimal)
FAQ
- What’s the difference between decimal and binary units?
Decimal uses powers of 1000 (1 KB = 1000 bytes). Binary uses powers of 1024 (1 KiB = 1024 bytes). Storage marketing often uses decimal, while operating systems may show binary-equivalent sizes.
- Is KB the same as KiB?
Strictly, no. KB is decimal (1000). KiB is binary (1024). Some software labels KiB values as KB, which can be confusing.
- Which should I choose for files on my computer?
If you want to match many OS file size displays, try the binary option (KiB/MiB/GiB). If you want to match disk/ISP marketing (e.g., 1 TB drive), use decimal.
- Are my inputs stored?
No. This converter runs locally in your browser.