Byte Unit Converter — KB, MB, GB, TB Online
Free online byte/data unit converter. Convert between Bytes, KB, MB, GB, TB, PB and their binary equivalents (KiB, MiB, GiB). Instant results.
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💡 What is this
Byte Converter
- Converts between all common data size units: Bytes, KB, MB, GB, TB, PB, plus binary (KiB, MiB, GiB) and bit-based units.
- Uses SI (1000) and IEC (1024) standards.
🎯 Use cases
When to use
- Calculating file transfer sizes
- Converting storage capacities
- Network bandwidth calculations
- Understanding disk vs advertised size
Frequently Asked Questions
What\'s the difference between KB and KiB?▾
KB (kilobyte) = 1,000 bytes (SI standard). KiB (kibibyte) = 1,024 bytes (binary/IEC standard). Operating systems often show KiB values labeled as KB, which causes confusion.
Why is my 1TB drive only 931GB?▾
Manufacturers use SI (1 TB = 1,000 GB) but your OS uses binary (1 TiB = 1,024 GiB). So 1 TB = ~931 GiB.