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Convert MB to GB

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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Result

This page opens the data storage converter preset to megabytes → gigabytes. In the decimal SI convention used on this page's default units, one gigabyte equals exactly 1,000 megabytes, so the formula is GB = MB ÷ 1,000: a 750 MB video is 0.75 GB, and 2,500 MB is 2.5 GB.

Be aware that there is a second convention: binary units, where 1 GiB = 1,024 MiB. Operating systems like Windows historically report sizes in binary units while labelling them "MB" and "GB", which is why a file listed as 1,000 MB in a download page can appear as roughly 953 "MB" in Explorer. If you need the binary math, switch the unit selectors to MiB and GiB — both families are available in the same dropdowns.

Typical uses: checking whether a set of files fits into a cloud storage quota, translating app and game download sizes into gigabytes, or summing camera footage before moving it to a drive. Enter the number of megabytes, press Convert, and copy the result with one click.

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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.