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kilobyte (KB) → byte (B)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
KB=B
1=1,024
2=2,048
4=4,096
8=8,192
16=16,384
32=32,768
64=65,536
128=131,072
256=262,144
512=524,288
1024=1,048,576

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Brief explanation: kilobyte to byte

Byte = 8 bits. 1 KB = 1024 bytes in binary (KiB). 1 MB = 1024 KB. Some storage providers use decimal (1000 bytes = 1 KB). GB and TB are used for storage capacity. The binary system (1024) is used by operating systems. The decimal system (1000) is sometimes used by manufacturers. Our converter uses the binary standard (1024) for consistency with most software.

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Common conversion examples: kilobyte to byte

Reference values for quick comparison. Use the converter above for any amount.

  • 1 kilobyte=1,024 byte
  • 1.02e+3 kilobyte=1,048,576 byte
  • 1.05e+6 kilobyte=1,073,741,824 byte

About the Units

kilobyte (KB)

Definition: A kilobyte (KB) is 1,024 bytes in binary (or 1,000 bytes in decimal for storage manufacturers). It is used for small file sizes and memory amounts.
History: The kilobyte emerged with early computing. The binary definition (1024 bytes) reflects how computers address memory. Storage manufacturers often use decimal (1000 bytes) for marketing.
Current use: Kilobytes measure small files, text documents, and low-resolution images. Email attachments and simple web pages use KB. 1 KB ≈ 1,000 characters of text.

byte (B)

Definition: A byte (B) is a unit of digital information. One byte equals 8 bits and can represent 256 values (0–255). It is the fundamental unit for character encoding and data storage.
History: The byte was coined by Werner Buchholz in 1956. It became standard as the smallest addressable unit in computer memory. ASCII uses one byte per character.
Current use: Bytes measure file size, memory, and data transfer. A single character typically uses one byte. Small files and buffer sizes are measured in bytes.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: