Convert

Byte to Kilobyte

Exact answer: 1 B = 0.001 KB (exact – SI decimal prefix)

Byte and Kilobyte both belong to the Data family. The difference is a decimal prefix, so the factor is a clean power of ten. Data volumes determine storage plans, upload limits, drive sizes and backup budgets.

Unit console

Convert units with formula, context and precision

UnitCloud is a local measurement lab for everyday work, engineering, IT, energy, mobility and design. Every conversion shows result, formula, base unit, rounding and the common mistake.

What do you want to convert?

From1,000 B

Result1 KB

Factor1 B = 0.001 KB

Source basisNIST Metric SI Prefixes · NIST Binary Prefixes

Examples

011,000 B = 1 KB

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

KB, MB and GB are decimal. KiB, MiB and GiB are binary. This distinction explains many apparent storage gaps.

03Base unit: Byte

1 B = 0.001 KB. Byte is the base unit of the family, so the value is converted directly.

Table

Byte to Kilobyte
Byte	Kilobyte
1,000	1
100,000	100
1,000,000	1,000
10,000,000	10,000
100,000,000	100,000
1,000,000,000	1,000,000

Formula

1 B = 0.001 KB. Byte is the base unit of the family, so the value is converted directly.

Sources

NIST Metric SI PrefixesDecimal SI prefix names and factors.NIST Binary PrefixesIEC binary prefixes such as KiB, MiB and GiB.

Related conversions

Bit to Bytebit → BData Kilobyte to MegabyteKB → MBData Kilobyte to KibibyteKB → KiBData Kibibyte to KilobyteKiB → KBData

Search and practice paths

FormulaTableExamplesCommon mistakeEveryday/engineeringExcel/CSVBatch converterPrint view

DataComparing data volumes Data rateReading internet speed correctly

Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Data. Source basis: NIST Metric SI Prefixes · NIST Binary Prefixes.

Common questions

What is the factor for Byte to Kilobyte?

1 B = 0.001 KB

Which formula does Byte to Kilobyte use?

1 B = 0.001 KB. Byte is the base unit of the family, so the value is converted directly.

What is the most common mistake?

KB, MB and GB are decimal. KiB, MiB and GiB are binary. This distinction explains many apparent storage gaps.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.