GB to MB Converter

Multiply gigabytes by 1,000 to get megabytes (decimal units).

1 GB = 1,000 MB

Convert megabytes to gigabytes instead

Formula

1 GB = 1,000 MB

megabytes = gigabytes × 1,000

Worked example

Convert 4.7 gigabytes to megabytes

  1. Multiply by 1,000
  2. 4.7 × 1,000 = 4,700

4.7 GB = 4,700 MB

Good to know

A single-layer DVD holds 4.7 GB = 4,700 MB. Mobile data plans are usually counted in decimal units, so a 1 GB allowance is 1,000 MB — though some carriers use 1,024. Check your provider’s terms if the difference matters.

Conversion table

Gigabytes to megabytes conversion table
Gigabytes (GB)Megabytes (MB)
0.5500
11,000
22,000
44,000
4.74,700
88,000
1616,000
3232,000
6464,000
128128,000
256256,000

About these units

Gigabyte (GB)
1,000,000,000 bytes (10⁹).
Megabyte (MB)
1,000,000 bytes (10⁶). Used by storage makers and most network speeds.