Data Storage & Speed Converter
Convert between Bytes, KB, MB, GB, TB, PB and calculate download times.
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About Calculator
The Data Storage Converter translates between Bytes, Kilobytes (KB), Megabytes (MB), Gigabytes (GB), Terabytes (TB), and Petabytes (PB). It supports both binary (1024-based, IEC) and decimal (1000-based, SI) standards.
In binary standard, 1 KB = 1024 Bytes. In decimal standard, 1 KB = 1000 Bytes. The binary standard is commonly used by operating systems, while storage manufacturers often use the decimal standard.
Frequently Asked Questions (FAQ)
What is the difference between binary and decimal standards?
Binary (IEC): 1 KB = 1024 B. Decimal (SI): 1 KB = 1000 B. Binary is used by most operating systems; decimal is used by drive manufacturers.
Why does my hard drive show less space than advertised?
Manufacturers measure in decimal (1 TB = 1,000,000,000,000 bytes), but your OS displays in binary (1 TB = 1,099,511,627,776 bytes), so the same drive appears ~7% smaller.
How many GB is 1 TB?
In binary: 1 TB = 1024 GB. In decimal: 1 TB = 1000 GB.
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