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Data Size Converter
Convert between bits, bytes, KB, MB, GB, TB, and binary units (KiB, MiB, GiB).
KB/MB/GB/TB base:
🔹 Bits & Bytes
Bits(b)
8,000,000,000
Bytes(B)
1,000,000,000
💾 Common (KB/MB/GB/TB)
Kilobytes(KB)
1,000,000
Megabytes(MB)
1,000
Gigabytes(GB)
1
Terabytes(TB)
0.001
🗄️ Large
Petabytes(PB)
1e-6
🖥️ Binary (IEC — KiB/MiB/GiB)
Kibibytes(KiB)
976,562.5
Mebibytes(MiB)
953.674
Gibibytes(GiB)
0.931323
Tebibytes(TiB)
9.0949e-4
Decimal vs Binary Explained
Hard drive manufacturers use decimal (1 KB = 1,000 bytes). Operating systems often use binary (1 KB = 1,024 bytes), which is why a 1 TB drive shows as ~931 GB in Windows.
1 KB (decimal)1,000 bytes
1 KiB (binary)1,024 bytes
1 GB (decimal)1,000 MB
1 GiB (binary)1,073.7 MB
1 TB~931 GiB
1 byte8 bits