💾 Data Storage converter

Gigabyte to Megabyte Converter

Convert gigabytes (GB) to megabytes (MB) instantly with the exact formula, a conversion table and chart.

GB

Results

Megabytes
1,000 MB
Same value in every unit

📊 Gigabyte to Megabyte chart

Gigabyte to Megabyte — plotted against gigabyte (gb).

How to convert gigabytes to megabytes

To convert gigabytes to megabytes, multiply by 1,000. Data size conversions matter for file uploads, cloud storage plans, hard drives and internet usage. Decimal (SI) prefixes are used: 1 KB = 1,000 bytes.

MB = GB × 1,000 GB = MB ÷ 1,000
Gigabyte to Megabyte conversion – GB to MB formula illustration
Gigabyte (GB) → Megabyte (MB) at a glance.

Gigabyte to Megabyte conversion table

Gigabyte (GB)Megabyte (MB)
0.1 GB100 MB
0.5 GB500 MB
1 GB1,000 MB
2 GB2,000 MB
3 GB3,000 MB
4 GB4,000 MB
5 GB5,000 MB
10 GB10,000 MB
20 GB20,000 MB
25 GB25,000 MB
50 GB50,000 MB
100 GB100,000 MB
500 GB500,000 MB
1,000 GB1,000,000 MB

About the units

Gigabyte (GB)

A gigabyte is 1,000,000,000 bytes and the common unit for phone storage and data plans.

Megabyte (MB)

A megabyte is 1,000,000 bytes, roughly the size of a short MP3 minute or a photo.

How to use this converter

  1. Type the number of gigabytes (GB) in the input box.
  2. The result in megabytes appears instantly — no button needed.
  3. See the same value in every other data storage unit just below.
  4. Use “Swap units” to convert megabytes back to gigabytes.

Tips for better results

  • Double-check which system a unit belongs to (for example US vs UK gallons).
  • Use the swap button to convert in the opposite direction instantly.
  • Bookmark the conversions you use most — each pair has its own page.

Frequently asked questions

How many megabytes are in one gigabyte?

One gigabyte equals 1,000 megabytes. 1,000 is the exact factor used by this converter.

How do I convert gigabytes to megabytes?

Multiply the value in gigabytes by 1,000. To go the other way, multiply megabytes by 0.001.

What is 10 GB in MB?

10 GB = 10,000 MB. Also, 5 GB = 5,000 MB and 100 GB = 100,000 MB.

What is the difference between a gigabyte and a megabyte?

A gigabyte is 1,000,000,000 bytes and the common unit for phone storage and data plans. A megabyte is 1,000,000 bytes, roughly the size of a short MP3 minute or a photo.

Is this tool free and private?

Yes — the Gigabyte to Megabyte is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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