Data Size
Bytes, KB, MB, GB converter
Common Data Sizes:
• MP3 Song: ~3-5 MB
• HD Photo: ~5-10 MB
• HD Movie: ~4-8 GB
• DVD Disc: ~4.7 GB
• Blu-ray Disc: ~25-50 GB
Frequently Asked Questions
What is the difference between KB and KiB?
KB (kilobyte) = 1000 bytes (decimal). KiB (kibibyte) = 1024 bytes (binary). This converter uses binary (1024) which is standard for computer storage.
How many MB in 1 GB?
In binary: 1 GB = 1024 MB. In decimal: 1 GB = 1000 MB. Computer storage typically uses binary (1024).
Why do hard drives show less space than advertised?
Manufacturers use decimal (1000) while operating systems use binary (1024). A "500 GB" drive is 500,000,000,000 bytes = ~465 GiB in binary.