KB vs KiB — difference?

KB=1000 bytes; KiB=1024 bytes. Same pattern for MB/MiB, GB/GiB.

1 byte = 8 bits. Networks often use bits, storage uses bytes.

SI for general specs; IEC for technical precision.

Bytes Converter

Convert between bits/bytes and SI (KB, MB, GB, TB) or IEC (KiB, MiB, GiB, TiB). Uses decimal math, large values supported.

Value Use dot as decimal separator (e.g., 1.5) Unit

Unit	Value

Notes

SI prefixes: KB=10³, MB=10⁶, GB=10⁹, TB=10¹².

IEC prefixes: KiB=2¹⁰, MiB=2²⁰, GiB=2³⁰, TiB=2⁴⁰.

1 byte = 8 bits.

KB vs KiB — what’s the difference?
KB (decimal) = 1000 bytes; KiB (binary) = 1024 bytes. Likewise MB vs MiB, GB vs GiB.

Bits vs bytes?
1 byte = 8 bits. Network speeds often use bits (Mb/s), storage uses bytes (MB).

Which system should I use?
Use SI (KB/MB/GB) for marketing/spec sheets; use IEC (KiB/MiB/GiB) for technical precision.