Data Storage Converter
1,000
1 Gigabyte (GB) = 1,000 Megabyte (MB)
All Conversions
Bit (b)8,000,000,000
Byte (B)1,000,000,000
Kilobyte (KB)1,000,000
Megabyte (MB)1,000
Gigabyte (GB)1
Terabyte (TB)0.001
How to Convert Data Storage Units
Data storage conversion is essential in computing. Understanding the difference between decimal (KB, MB, GB) and binary (KiB, MiB, GiB) units helps avoid confusion when buying storage devices.
Decimal vs Binary
In decimal: 1 KB = 1,000 bytes. In binary: 1 KiB = 1,024 bytes. This is why a "500 GB" hard drive shows less space in your operating system.
Frequently Asked Questions
How many MB are in a GB?
One gigabyte equals 1,000 megabytes (decimal) or 1,024 mebibytes (binary).
Why does my drive show less space?
Drive manufacturers use decimal (1 GB = 1,000 MB) while operating systems use binary (1 GiB = 1,024 MiB), so a 500 GB drive shows about 465 GiB.