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ConvertMyStuff
Tool

GB to MB Converter

Convert gigabytes to megabytes using binary (1024-based) units.

Unit Converters

What this tool does

Convert digital storage from gigabytes to megabytes using binary (IEC) units.

How to use

  1. Enter the size in gigabytes.
  2. View the megabytes result instantly.
  3. Use the reverse converter link for MB to GB.

Formula

megabytes = gigabytes × 1024

Examples

2 gigabytes

Input: 2

Output: 2,048

2 × 1024 = 2,048 megabytes.

Learn more

Gigabytes to megabytes

Breaking gigabytes into megabytes helps compare file sizes to upload limits or email attachment caps.

1 GB = 1,000 MB in decimal SI-style storage marketing; some systems use 1,024 MB per GB.

Common use cases

  • Convert storage quotas to megabytes
  • Translate RAM or disk specs for comparison
  • Estimate upload limits in MB

FAQ

Does this use binary gigabytes?

Yes. 1 GB equals 1024 MB in this calculator.

How do I convert MB to GB?

Use the MB to GB converter.

Can I enter decimal gigabytes?

Yes. Decimal gigabyte values are supported.

Source notes

  • Binary conversion: 1 gigabyte (GB) = 1024 megabytes (MB).

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Last reviewed: 2026-05-23