About the Data Storage Converter
Data storage is measured using two different prefix systems that are often confused. Decimal (SI) prefixes — KB, MB, GB, TB — use powers of 1,000, while binary (IEC) prefixes — KiB, MiB, GiB, TiB — use powers of 1,024. Our converter supports both systems so you always know exactly how much storage you are working with.
Decimal vs binary
Hard drive manufacturers typically use decimal units (1 TB = 1,000,000,000,000 bytes), while operating systems often report sizes in binary units (1 TiB = 1,099,511,627,776 bytes). This is why a "1 TB" drive shows as roughly 931 GiB in your OS. Understanding the difference helps you avoid confusion when comparing storage capacities.
All units at a glance
From the smallest unit — the bit (a single 0 or 1) — to the massive exabyte (1 billion gigabytes), this tool converts across 12 units in real time. All calculations use precise values and run entirely in your browser with no data sent to any server.