Gigabytes to Megabytes Converter (GB to MB)

Convert gigabytes to megabytes.

Gigabytes (GB) → Megabytes (MB)

Enter a value in Gigabytes (GB)1 Gigabytes (GB) = 1024 Megabytes (MB)
Gigabytes (GB)

Decimals supported.

Result

Megabytes (MB)

Enter a value to convert Gigabytes (GB) to Megabytes (MB).

How to perform a Gigabyte Conversion to Megabyte?

Converting gigabytes to megabytes is common for checking data plans and SD cards. If you need a quick gigabyte conversion to megabyte, the standard binary formula is:

1 Gigabyte = 1024 Megabytes

Step-by-Step Calculation

  1. 1
    Take the number of Gigabytes (e.g., 32).
  2. 2
    Multiply by 1024.
  3. 3
    The result is the value in Megabytes. (Example: 32 × 1024 = 32,768 MB).

Common Storage Sizes (USB & SD Cards)

  • 8 Gigabytes to Megabytes: 8 GB × 1024 = 8,192 MB.
  • 20 Gigabytes to Megabytes: 20 GB × 1024 = 20,480 MB.
  • 32 Gigabytes to Megabytes: A 32 GB SD card holds exactly 32,768 MB.

Gigabytes to Megabytes Conversion Chart

Gigabytes (GB)Megabytes (MB)
1 GB1024 MB
2 GB2048 MB
5 GB5120 MB
8 GB8192 MB
10 GB10240 MB
20 GB20480 MB
32 GB32768 MB
64 GB65536 MB
100 GB102400 MB

Frequently Asked Questions

Q

1 gigabyte is equal to how many megabytes?

1 Gigabyte is equal to 1024 Megabytes in the binary system (used by computers). In the decimal system (marketing), it is 1000 MB.

Q

How many megabytes in 32 GB?

There are exactly 32,768 MB in a 32 GB binary storage device (like a 32GB RAM stick or SD card).

Q

How do I convert gigabytes to megabytes?

Simply multiply the GB value by 1024 to get the MB value for computer storage. Multiply by 1000 for network speeds or hard drive marketing labels.

Q

Why is my 64GB drive only showing 59GB?

This happens because manufacturers calculate size using 1000 (Decimal), but your computer calculates it using 1024 (Binary). The conversion difference results in a lower displayed size.

Q

How many megabytes is 8 gigabytes?

8 Gigabytes is equal to 8,192 Megabytes (8 x 1024).