Calculators toolsUpdated July 2026
Free GB to MB Converter
Convert gigabytes to megabytes online for free, directly in your browser.
Free online tool
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Enter a value to convert.
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How to convert GB to MB
- Type a value in gigabytes.
- The result in megabytes updates instantly.
GB to MB formula (binary convention)
This page uses 1 GB = 1024 MB, the traditional binary convention. Multiply the gigabyte value by 1024 to get megabytes.
Common use cases
- Convert storage capacity from gigabytes to megabytes
- Check a file size listed in gigabytes
Frequently asked questions
Is this GB to MB converter free?
Yes, with no signup or watermark.
Are my numbers uploaded?
No. The conversion runs locally in your browser.
Is this 1000 MB or 1024 MB per GB?
This page uses 1024 MB per GB, the binary convention. Some contexts use 1000 instead — check which your source expects.
Can I convert MB to GB here too?
Yes. Use the swap button, or visit the MB to GB page directly.