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Data Storage Converter

Convert data storage units instantly: bits, bytes, KB, MB, GB, TB and the binary KiB, MiB, GiB, TiB — with the 1000 vs 1024 distinction made explicit.

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How many megabytes are in a gigabyte? It depends on who you ask — and that ambiguity is exactly what this converter resolves. It converts between bits, bytes and the full ladder of storage units: the decimal SI series (KB, MB, GB, TB, based on powers of 1,000) and the binary IEC series (KiB, MiB, GiB, TiB, based on powers of 1,024), all in one tool.

The 1000-vs-1024 split is the source of a famous everyday confusion: drive manufacturers count in decimal units, so a "500 GB" disk holds 500,000,000,000 bytes — but Windows divides that number by 1,073,741,824 (1 GiB) and reports about 465 GB. Nothing is missing; the two sides simply use different units while sharing the same label. This converter lets you translate between both conventions explicitly, and every result carries a one-line reminder of which rule applies.

Everything is computed locally in your browser with exact factors: 1 byte = 8 bits, 1 MB = 1,000,000 bytes, 1 MiB = 1,048,576 bytes, 1 TiB = 1,099,511,627,776 bytes. There is no server call and no rounding tricks — values are rounded only for display.

Use it to check how many photos fit on a memory card, translate a download size from MB to GB, compare hosting plans quoted in GiB against drives sold in GB, estimate backup sizes in TB, or convert network transfer figures from bits to bytes when a "100 Mbps" line turns out to mean 12.5 MB/s.

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Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Ten units: bit, byte, KB, MB, GB, TB, KiB, MiB, GiB, TiB.
  • Exact factors: decimal units use powers of 1,000, binary units use powers of 1,024, and 1 byte = 8 bits.
  • One-click copy of the conversion result.

Key Benefits

✓ Covers both unit families in one place: decimal SI units (1 kB = 1,000 bytes) and binary IEC units (1 KiB = 1,024 bytes), so you can finally compare them directly.
✓ Every result comes with a reminder of the SI vs binary distinction — the exact reason a "1 TB" drive shows up as roughly 931 GiB in your operating system.
✓ Runs entirely in your browser: no upload, no account, and the math uses exact integer factors, not rounded approximations.

Use Cases

  • • Convert a download size from megabytes to gigabytes to see whether it fits into your remaining cloud storage quota.
  • • Check why a 1 TB drive shows up as roughly 931 GiB in Windows by converting between decimal (1000) and binary (1024) units.
  • • Translate a network speed quoted in bits into bytes to estimate the real download rate of a 100 Mbps connection.