Convert bytes, kilobytes, megabytes, gigabytes, and terabytes. Essential for IT and hardware purchases.
Data storage is a relatively new quantity in the history of measurement — it only came into existence with digital computing — and it still carries a technical confusion that causes practical errors to this day: the difference between decimal prefixes (based on powers of 10, as used by the storage industry) and binary prefixes (based on powers of 2, as the operating system actually calculates). A hard drive manufacturer advertises "1 terabyte" using the decimal definition (1 trillion bytes), but Windows or macOS shows that same drive as having less than 931 gigabytes, because the operating system calculates using powers of 2 (1 TB = 1,024 GB, not 1,000 GB). This difference, which seems small unit by unit, accumulates significantly in large storage devices, and is a constant source of consumer complaints from people who feel misled without understanding the real technical cause. This converter calculates between bytes, kilobytes, megabytes, gigabytes, terabytes, and their variants, essential for IT professionals sizing servers and cloud infrastructure, developers optimizing storage use in applications, and anyone comparing cloud storage plans or trying to understand why a device's real capacity seems smaller than what's advertised on the box.
1 GB = 1,000 MB (manufacturers' decimal) or 1 GiB = 1,024 MiB (operating system binary).
Manufacturers use decimal (10¹²). Windows uses binary (2⁴⁰), resulting in 931 apparent GiB.
1 KB = 1,000 bytes (SI) or 1 KiB = 1,024 bytes (IEC binary).
1 byte = 8 bits. Internet speeds use bits (Mbps); file sizes use bytes (MB).
Yes, completely free and with no registration.
Manufacturers use 1 GB = 1,000,000,000 bytes (decimal). Operating systems often use 1 GiB = 1,073,741,824 bytes (binary), so capacity looks smaller.
Decimal: 1 GB = 1,000 MB. Binary (GiB): 1 GiB = 1,024 MiB.
No. 1 byte = 8 bits. Files and storage use bytes; network speeds are often in bits per second.
1 TB (decimal) = 1,000 GB. 1 TiB (binary) = 1,024 GiB.