Tool
Data Storage Converter
Convert between bytes, KB, MB, GB, TB and PB instantly. Live reference table for all storage units.
About the Data Storage Converter
Data storage units are based on powers of 1024 (binary) in operating systems, while storage manufacturers use powers of 1000 (decimal). This means a 1 TB drive shows as ~931 GB in Windows or macOS. Understanding the difference matters when buying storage, planning backups, or working with file sizes in development.
Common uses: understanding file sizes, planning storage purchases, calculating bandwidth requirements, comparing cloud storage plans, and working with database sizes in software development.
The most practical conversion for most people is megabytes to gigabytes — a 1,500 MB video file is 1.46 GB, which is why it may not fit on a drive showing 1.2 GB free. The tool uses binary (1 GB = 1,024 MB) since that matches what your operating system reports, not the decimal 1,000 MB that storage manufacturers print on packaging.
For developers, common uses include calculating database sizes, checking whether a file exceeds an API upload limit, estimating S3 or cloud storage costs, and understanding memory requirements for applications. A quick reference: 1 KB = 1,024 bytes, 1 MB = 1,024 KB, 1 GB = 1,024 MB, 1 TB = 1,024 GB.
More free developer tools: Binary to Decimal · Decimal to Binary · Base64 Encoder / Decoder