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Gigabytes to Megabytes Converter

Free instant GB → MB converter. No signup, no uploads — everything is calculated privately in your browser.

1 GB = 1,024 megabytes

Free and instant — every calculation runs in your browser. Nothing is uploaded.

Quick Answer

1 gigabyte equals 1,024 megabytes. To convert gigabytes to megabytes, multiply the value by this factor.

Key Facts

  • Reverse: 1 megabyte = 0.000976563 gigabytes.
  • Binary convention: each step multiplies by 1,024, not 1,000.

Gigabytes to Megabytes Formula

Formula: value × 1,024

Prefer to skip the math? Type any value in the converter above and it converts instantly.

Gigabytes to Megabytes Conversion Table

Gigabytes (GB)Megabytes (MB)
1 GB1,024 MB
2 GB2,048 MB
5 GB5,120 MB
10 GB10,240 MB
25 GB25,600 MB
50 GB51,200 MB
100 GB102,400 MB
250 GB256,000 MB
500 GB512,000 MB
1,000 GB1,024,000 MB

Frequently Asked Questions

How do I convert gigabytes to megabytes?

Enter the value above and the result appears instantly — the calculation runs entirely in your browser. Formula: value × 1,024.

What is the exact gigabytes to megabytes conversion factor?

1 gigabyte = 1,024 megabytes (shown to 6 significant figures — the converter itself computes at full precision). The reverse factor is 1 megabyte = 0.000976563 gigabytes.

What are some common gigabytes to megabytes conversions?

1 GB = 1,024 MB; 10 GB = 10,240 MB; 100 GB = 102,400 MB. Use the full conversion table below for more reference values.

Is a kilobyte 1,000 or 1,024 bytes?

This converter uses the binary convention: 1 KB = 1,024 bytes, 1 MB = 1,024 KB, and so on. That matches how operating systems report memory and file sizes. Storage manufacturers often use the decimal convention (1 KB = 1,000 bytes), which is why a "500 GB" drive shows less capacity in Windows.

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