MB to GB Converter
Convert megabytes to gigabytes
Frequently Asked Questions
How many MB are in a GB?
1 GB = 1,000 MB (decimal/SI) or 1,024 MB (binary/IEC). Storage manufacturers use decimal (1 GB = 1,000 MB), while operating systems often use binary (1 GiB = 1,024 MiB). The converter shows both standards.
Why does my 256 GB drive show less space in Windows?
Manufacturers measure 256 GB as 256,000,000,000 bytes (decimal). Windows displays in binary: 256,000,000,000 / 1,073,741,824 = 238.4 GiB. The "missing" space is a unit difference, not a defect. The converter explains both systems.
How do I convert MB to GB for mobile data plans?
Divide MB by 1,000. 500 MB = 0.5 GB. 1,500 MB = 1.5 GB. Mobile carriers use decimal units: a 5 GB plan = 5,000 MB. Streaming uses roughly 1 GB/hour for SD video and 3 GB/hour for HD.
What is the difference between MB and Mb?
MB (megabyte) = 8 Mb (megabits). Internet speeds are measured in Mbps (megabits per second). A 100 Mbps connection downloads at about 12.5 MB/s. The converter handles both bytes and bits.
How much storage do common files use in MB and GB?
Photo (12MP): 3-5 MB. Song (MP3): 3-8 MB. HD movie: 4-5 GB. 4K movie: 15-25 GB. App: 50-500 MB. 1 hour video call: 300-500 MB. The converter helps estimate how many files fit in your storage.