How many mb for a gb?

[kanchu]

Hi,
I just want to know how much mb make 1 gb?
Is it 1000 or 10,000 mb? I want to purchase an external hdd so i want to know should i get a 250gb hdd or 500gb hdd?

[nooob]

Technically 1024mb = 1gb

1 megabyte = 8 megabits

1 megabyte = 1024 kilobytes

1 gigabyte = 1024 megabytes or 8192 megabits

[newtech]

1 GB = 1024 MB, 1 MB = 1024 kilobytes (kB), 1 kB = 1024 bytes (B). Because of binary addressing, the groupings were bunched by orders of 2 to the 10th power and assigned the standard labels because 1024 is close to 1000. Again, according to Wikipedia, the proper prefix used when grouping by 1024 is 1 gibibyte (GiB) = 1024 mebibytes (MiB), 1 MiB = 1024 kibibytes (KiB), 1 KiB = 1024 B