Bytes to KB Converter

Type bytes or KiB and see the result immediately, with decimal kB and binary KiB shown side by side so the convention is never hidden.

kB vs KiB: decimal kB uses 1,000 bytes; binary KiB uses 1,024 bytes.

Both shown

Bytes (B) type here

Binary KiB (KiB) or here

Converted value

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1 KiB = 1,024 bytes; decimal 1 kB = 1,000 bytes.

—Decimal kB

—Binary KiB

—Numeric gap

All units

Precision, formula & full reference table

Display precision

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Build custom table

1 KiB = 1,024 bytes; decimal 1 kB = 1,000 bytes.

Bytes ↔ KB (1024 bytes)

Enter a value in the main field for the forward conversion. Reverse conversion, display precision, copy, and a common-value reference table are available here too.

Display precision

KB (1024 bytes) → Bytes

—Reverse conversion

—KB (1024 bytes) = Bytes × 9.76562e-4

Bytes	KB (1024 bytes)

Reverse factor: 1 KB (1024 bytes) ≈ 1024 Bytes

Decimal vs binary file-size audit

Show kB (1000) and KiB (1024) together, plus bits and higher units.

IEC / SI

Unit	Value	Definition

Core conversion workflows

Start with a broad dimension converter or jump to the most common metric/imperial pairs. Specialist converters remain available from the full hub.

All 134 converters

Unit ConverterAll-in-one measurement conversion Length ConverterMetric and imperial length units Weight ConverterMass and weight units Temperature ConverterCelsius, Fahrenheit and Kelvin Inches → CMExact 2.54 conversion CM → InchesReverse exact length conversion KG → LBSKilograms to pounds LBS → KGPounds to kilograms °F → °CFahrenheit to Celsius °C → °FCelsius to Fahrenheit Miles → KMMiles to kilometers KM → MilesKilometers to miles

Practical guide and verification

KB can mean two different scales

In decimal SI usage, one kilobyte is 1,000 bytes. In binary usage, 1,024 bytes is one kibibyte (KiB), although some interfaces still label that value “KB.” State the convention when precision matters.

Storage displays may disagree

Operating systems, drive vendors and network tools can use different decimal/binary conventions. Two displays can therefore show different numeric sizes for the same byte count without either changing the file.

Common mistake

Do not convert bits as though they were bytes. Network speeds are often stated in bits per second, while file sizes are commonly shown in bytes.

How to use this Bytes to KB Converter

Type bytes or binary KiB. The primary conversion updates immediately, while decimal kB and binary KiB stay visible side by side so the 1,000-vs-1,024 convention is obvious.

Conversion standard and conventions

Decimal kilobytes use 1,000 bytes. IEC kibibytes use 1,024 bytes. The historical WebToolArc 1,024-byte result remains preserved as KiB.