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Data Size Converter

Convert between bytes, KB, MB, GB, TB, PB in decimal (SI) and binary (IEC) units. Click any value to copy.

📐 Input

Decimal (SI) — base 10

Binary (IEC) — base 2

Bits

📊 Decimal vs Binary Comparison

Shows why a "1 TB" drive shows ~931 GiB in your OS

📎 Quick Reference

1 KB = 1,000 bytes
1 KiB = 1,024 bytes
1 MB = 1,000,000 bytes
1 MiB = 1,048,576 bytes
1 GB = 1,000,000,000 bytes
1 GiB = 1,073,741,824 bytes
1 TB = 1012 bytes
1 TiB = 240 bytes
1 byte = 8 bits
1 Mb/s = 125 KB/s
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