MB to GB (decimal) converter
Decimal (SI): 1 GB = 1000 MB. Use this MB to GB converter to change megabytes to gigabytes instantly by dividing MB by 1000.
Converter tool
Formula: GB = MB ÷ 1000
Quick examples
| MB | GB (decimal) |
|---|---|
| 500 | 0.5 |
| 1024 | 1.024 |
| 2048 | 2.048 |
| 5000 | 5 |
| 10000 | 10 |
How to convert MB to GB
Context: Decimal (SI) units KB, MB, GB, TB use powers of 1000.
Formula: GB = MB ÷ 1000.
Example: 2048 MB ÷ 1000 = 2.048 GB (decimal).
Reverse conversion: MB = GB × 1000.
Tip: Type in either MB or GB and use the swap button to reverse the calculation instantly.
Decimal MB vs GB and binary MiB vs GiB
This calculator uses decimal (SI) data units, where 1 GB = 1000 MB. This is the convention used by most storage manufacturers and many operating systems when they advertise disk sizes, cloud storage, and mobile data plans.
In binary notation, you may see units like MiB and GiB, where 1 GiB = 1024 MiB. That is a different system and not what this MB to GB (decimal) converter uses. Here we keep it simple: MB and GB are based on powers of 1000.
Use this tool when you want to compare file sizes to advertised storage capacities, estimate backup sizes, or understand download limits in GB from MB-based values.
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MB → GB FAQs
What definitions are used?
Decimal (SI): 1 KB = 1000 B, 1 MB = 1000 KB, 1 GB = 1000 MB, 1 TB = 1000 GB.
Is this MB to GB in decimal or binary?
This calculator uses decimal (SI) units, where 1 GB = 1000 MB, not binary GiB/MiB units.
How do I go the other way?
Use MB = GB × 1000.
Are the results rounded?
Calculations use exact constants; values are displayed with sensible rounding for readability.