Megabytes to Gigabytes converter (MB → GB)

MB to GB formula

Worked example: 500 MB = 0.4883 GB. The defining value behind this factor is documented on our digital storage & data standards page.

Megabytes to Gigabytes chart

Includes standard reference values plus the specific numbers people search for most.

Most-searched MB to GB answers

When to convert MB to GB

• ▸Everyday reference — 313705 MB = the equivalent in GB for schoolwork, shopping and travel.
• ▸Professional use — engineers, chemists, chefs and traders convert between MB and GB daily.
• ▸Global commerce — datasheets, packaging and import/export forms often require both units.

Common mistakes

• ✕Applying the conversion factor in the wrong direction (MB → GB vs GB → MB).
• ✕Rounding intermediate steps — always convert once from the exact factor to keep full precision.
• ✕Why a 1 TB drive shows as 931 GB. The manufacturer sells 1 000 000 000 000 bytes (SI terabyte). Windows divides by 1024 three times and calls the result GB, giving 931.32. No storage is missing — the two systems simply label the same bytes differently. macOS and Linux now report in SI units, so the same drive shows as 1 TB there.

Regional usage & source

Different countries prefer different units; this converter gives the exact equivalent.

Reference: Conversion factors follow the International System of Units (SI) as maintained by BIPM and NIST.

How these numbers are produced and rounded: methodology.

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