Convert between bytes, KB, MB, GB, TB, and PB
Note: This converter uses binary (base-2) units where 1 KB = 1024 bytes. Some systems use decimal (SI) units where 1 KB = 1000 bytes.
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Type the number of bytes, kilobytes, megabytes, or other unit you want to convert.
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Choose the input unit from bytes, KB, MB, GB, TB, or other data size units.
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See your value instantly converted to all other data size units.
Yes, the Byte Size Converter is completely free with no limitations. Convert between bytes, kilobytes, megabytes, gigabytes, and more as often as you need without registration.
Yes, all byte conversions happen locally in your browser using JavaScript. No data is sent to any server. The calculations are performed entirely on your device.
KB (kilobyte) uses the decimal system where 1 KB = 1,000 bytes. KiB (kibibyte) uses the binary system where 1 KiB = 1,024 bytes. The tool supports both standards so you can convert accurately for any context, whether for storage vendors (decimal) or operating systems (binary).
The tool supports bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), petabytes (PB), and their binary equivalents (KiB, MiB, GiB, TiB, PiB). This covers all common file size and storage capacity units.
Storage vendors use decimal units (1 GB = 1,000,000,000 bytes) while operating systems often use binary units (1 GiB = 1,073,741,824 bytes). A 500 GB drive shows as about 465 GiB in your OS. This tool helps you convert between both systems to understand the actual capacity.