Data Size Converter
Translate storage sizes between bits, bytes, and decimal/binary prefixes for accurate comparisons.
976.5625 Mebibyte (MiB)
Other representations
Bit (b)
8,192,000,000
Byte (B)
1,024,000,000
Kilobyte (kB)
1,024,000
Storage math without the guesswork
File systems, cloud dashboards, and drive packaging use different conventions. This converter keeps decimal units from kB all the way to YB and their binary counterparts from KiB to YiB side by side, so you can reconcile specs, invoices, and download speeds quickly.
Enter any value—including bit-based measurements like Mb or Kib—to see equivalent representations. It is perfect for planning backups, comparing cloud tiers, translating network throughput into real-world transfer times, and estimating petabyte-scale archives.
Where it helps
- Understand why a “1 TB” drive shows ~931 GiB in your OS.
- Convert Mbps internet plans into MB/s download expectations.
- Compare analytics export sizes across binary and decimal dashboards.
- Gauge petabyte and exabyte scale data warehouse requirements without mental math.
Accuracy notes
We route every conversion through bytes, then round the final answer to six decimals. Copy the output if you need more precision in spreadsheets or API integrations.
Negative values aren't allowed because storage capacities and file sizes can't be negative. The converter flags those inputs immediately.
Sample conversions
- 1 GB
- = 0.931 GiB — common discrepancy between marketing and OS values.
- 100 Mbps
- ≈ 12.5 MB/s — realistic download speed after dividing by eight.
- 1 YiB
- ≈ 1.2089 YB — handy when translating between binary and decimal hyperscale units.
Related tools
- Schedule conversions over time with the Time Converter.
- Need to estimate power draw for storage arrays? Pair this with the Power Converter.
FAQ highlights
Do you cover petabytes? Absolutely—decimal and binary prefixes run all the way from kilo through yotta, including PB/EiB tiers.
What about compression ratios? Combine this converter with our upcoming text utilities to analyze archive savings versus raw sizes.

