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Gigabyte to Megabyte Converter

Type a value — the answer appears instantly. 1 GB = 1,000 MB.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

1,000 megabytes

= 1,000,000,000 B= 0.001 TB

equals 1,000 megabytes

Formula: MB = GB × 1000

Gigabyte to Megabyte formula

MB = GB × 1000

Convert 5 gigabytes to megabytes

  1. Start with 5 gigabytes.
  2. Multiply by the conversion factor: 5 × 1,000 = 5,000.
  3. So 5 GB = 5,000 MB.

Gigabyte to Megabyte conversion table

Gigabyte to Megabyte conversion table
Gigabytes (GB)Megabytes (MB)
0.01 GB10 MB
0.1 GB100 MB
0.25 GB250 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
6 GB6,000 MB
7 GB7,000 MB
8 GB8,000 MB
9 GB9,000 MB
10 GB10,000 MB
15 GB15,000 MB
20 GB20,000 MB
25 GB25,000 MB
30 GB30,000 MB
40 GB40,000 MB
50 GB50,000 MB
75 GB75,000 MB
100 GB100,000 MB
250 GB250,000 MB
500 GB500,000 MB
1,000 GB1,000,000 MB
5,000 GB5,000,000 MB
10,000 GB10,000,000 MB

Unit definitions

What is a gigabyte?

The gigabyte (decimal) is one billion bytes (1000³) under the SI convention that drive and phone makers use. Movies, apps, and storage capacities are usually quoted in gigabytes. It is smaller than a gibibyte (1,073,741,824 bytes).

What is a megabyte?

The megabyte (decimal) is one million bytes (1000²) under the SI convention. Photos, songs, and documents are commonly sized in megabytes. It differs from the mebibyte, which is 1,048,576 bytes.

Frequently asked questions

How many megabytes are in one gigabyte?

One gigabyte equals 1,000 megabytes (1 GB = 1,000 MB).

How do I convert gigabytes to megabytes?

Multiply the value in gigabytes by 1,000. For example, 10 GB × 1,000 = 10,000 MB.

Which is bigger — a gigabyte or a megabyte?

A gigabyte is bigger: one gigabyte contains 1,000 megabytes.

Is this gigabyte to megabyte converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.