Convert Kilobytes to Bytes
Convert Kilobytes (KB) to Bytes (B) instantly and accurately.
Conversion Formula
B = KB × 1000
About Kilobytes
A kilobyte (KB) = 1,000 bytes (SI). Used by all storage manufacturers (HDD, SSD, USB, SD) and endorsed by the IEC and FTC. Typical sizes: plain-text email 2-5 KB; HTML page 10-100 KB; Word document 10-30 KB. Ethernet MTU = 1,500 bytes ≈ 1.5 KB; jumbo frames 9 KB. MP3 at 128 kbit/s = 16 KB/s of audio. 1 KB = 1,000 bytes = 8,000 bits.
About Bytes
The byte (B) is the fundamental addressable memory unit - 8 bits, 256 values (0-255). Standardised by the IBM System/360 (1964). UTF-8 encodes ASCII in 1 byte; Unicode in 1-4 bytes. One byte = 1 ASCII character, 1 RGB channel value, 1 PCM audio sample (8-bit). All mainstream CPU architectures (x86-64, ARM64, RISC-V) increment addresses by 1 byte. 1 byte = 8 bits = 2 nibbles.
Quick Reference Table
| Kilobytes (KB) | Bytes (B) |
|---|---|
| 1 KB | 1000 B |
| 2 KB | 2000 B |
| 5 KB | 5000 B |
| 10 KB | 10000 B |
| 25 KB | 25000 B |
| 50 KB | 50000 B |
| 100 KB | 100000 B |