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Data size

Bytes to KB Converter

Convert bytes (B) to kilobytes (KB). 1 B = 0.001 KB, and 1 KB = 1,000 B.

Formula

KB = B ÷ 1000

How to convert

To convert bytes to kilobytes, divide the value by 1,000. For example, 4,096 B = 4.096 KB.

Conversion table

Bytes (B) KB
1 B 0.001 KB
8 B 0.008 KB
100 B 0.1 KB
512 B 0.512 KB
1,000 B 1 KB
1,024 B 1.024 KB
4,096 B 4.096 KB
10,000 B 10 KB
100,000 B 100 KB
1,000,000 B 1,000 KB

About these units

Storage sizes come in two systems. Decimal (SI) units step by 1,000: 1 KB = 1,000 bytes, 1 MB = 1,000 KB and 1 GB = 1,000 MB. Binary (IEC) units step by 1,024: 1 KiB = 1,024 bytes and 1 MiB = 1,024 KiB. Drive makers and most specifications use decimal units, while Windows and many programs count in binary but label the result KB, MB or GB, which is why a 1 TB drive shows up as about 931 GB. One byte is 8 bits.

FAQ

› How do I convert B to KB?

1 B = 0.001 KB. To convert, divide the value by 1,000: 4,096 B = 4.096 KB.

› What is 1 KB in B?

1 KB = 1,000 B. The reverse formula is B = KB × 1000.

› Is 1 MB 1,000 KB or 1,024 KB?

In SI units 1 MB is 1,000 KB. The 1,024-based unit has its own name, the mebibyte (MiB). Some software still writes MB for 1,024 KB, so check which convention a number uses.

› Why does a new drive show less space than advertised?

The box uses decimal gigabytes (10⁹ bytes) while the operating system reports binary gibibytes (2³⁰ bytes) labeled GB. A 500 GB drive is about 465.66 GiB; no space is missing.