Kilobits to Bytes Converter
Enter the data size in kilobits below to convert it to bytes.
Convert Kilobits to Bytes
Enter a value in kilobits (Kb) to convert to bytes (B).
Kilobit to Byte Conversion Table
Table showing various kilobit measurements converted to bytes. Click any preset value or arrow to load it into the converter.
How to Convert Kilobits to Bytes
To convert kilobits to bytes, multiply the data size by the following conversion ratio: 125 bytes/kilobit.
Since one kilobit is equal to 125 bytes, you can use this simple formula to convert:
The data size in bytes is equal to the data size in kilobits multiplied by 125.
For example, here's how to convert 5 kilobits to bytes using the formula above.
How Many Bytes Are in a Kilobit?
There are 125 bytes in a kilobit, which is why we use this value in the formula above.
Our kilobit to byte calculator automatically converts your data size measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Kilobits and bytes are both units used to measure data size. Keep reading to learn more about each unit.
What Is a Kilobit?
A kilobit is a unit of data size equal to 125 bytes (B), the base unit for data size. Equal to 1,000 bits (125 bytes). [1]
The kilobit is classified as a metric and SI-compatible unit of data size. Kilobits can be abbreviated as Kb; for example, 1 kilobit can be written as 1 Kb.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilobit (Kb) a convenient decimal multiple of the byte (B).
In practice, kilobits (Kb) are widely used across standard data size applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Byte?
8 binary bits. It serves as a primary reference unit for measuring data size across scientific and practical applications. [2]
The byte is classified as an IEC binary unit of data size. Bytes can be abbreviated as B; for example, 1 byte can be written as 1 B.
As the primary coherent reference unit for data size in this category, all other data size units are mathematically anchored to the byte (B).
In practice, bytes (B) are widely used across standard data size applications within IEC binary workflows, engineering documentation, and technical data sheets.
When converting data size between kilobits (Kb) and bytes (B), keep full floating-point precision (1 Kb = 125 B; 1 B = 0.008 Kb) during intermediate calculations and round only the final byte figure to match your instrument tolerance.
More Kilobit & Byte Conversions
Need to calculate in the opposite direction? Use our bytes to kilobits calculator to switch your starting unit immediately. You can also explore related tools such as converting bytes to kilobits, converting bits to bytes, or converting megabytes to gigabytes.
Frequently Asked Questions
References
- [1]NIST / IEC StandardNIST / IEC (IEC 80000-13 Binary Prefixes)·Digital Storage Metrology Standard — Kilobits (Kb) to Bytes (B)
- [2]BIPM SpecificationBIPM (SI Decimal Prefixes (k, M, G, T, P))·Unit Specifications: Kilobit (Kb) & Byte (B)
- [3]NIST CUU ReferenceNIST CUU (SI Prefixes & Decimal Multiples)·Conversion Factors & Mathematical Basis (Kb to B)