How do you convert bytes to kilobits?

To convert bytes (B) to kilobits (Kb), multiply the data size in bytes by 0.008 (kilobits = bytes × 0.008).

What is 5 bytes in kilobits?

5 bytes (5 B) is equal to 0.04 kilobits (0.04 Kb).

Which is larger, 1 byte (B) or 1 kilobit (Kb)?

One kilobit (Kb) is larger than one byte (B). Specifically, 1 Kb equals 125 B, while 1 B is 0.008 Kb.

How do I convert back from kilobits (Kb) to bytes (B)?

To reverse the calculation from Kb to B, multiply your kilobit value by the inverse factor 125 (or divide by 0.008). You can also click the Swap button in the tool above to flip directions in one click.

Are there regional or standard differences when converting B and Kb?

Decimal SI (Base-10) vs. Binary IEC (Base-2) & Bits vs. Bytes: Networking speeds and storage drive manufacturers use SI decimal prefixes (1 kB = 1,000 bytes, 1 MB = 1,000,000 bytes, 1 GB = 10⁹ bytes), whereas operating systems and RAM often report binary IEC prefixes (1 KiB = 1,024 bytes, 1 MiB = 1,048,576 bytes, 1 GiB = 1,073,741,824 bytes). Also note that lowercase 'b' denotes bits while uppercase 'B' denotes Bytes (1 Byte = 8 bits).

Bytes to Kilobits Converter

Enter the data size in bytes below to convert it to kilobits.

Kilobits to Bytes (Kb → B)

Convert Bytes to Kilobits

Enter a value in bytes (B) to convert to kilobits (Kb).

Value (B)

From

Result

•

0.04kilobits

5 B = 0.04 Kb

Result updates automatically

Get Widget

Suggested Conversions

Reference:NIST / IEC (IEC 80000-13 Binary Prefixes)

[1–3] ↓

Byte to Kilobit Conversion Table

Table showing various byte measurements converted to kilobits. Click any preset value or arrow to load it into the converter.

Bytes (B)	Kilobits (Kb)
1 B	0.008 Kb
2 B	0.016 Kb
2.5 B	0.02 Kb
5 B	0.04 Kb
10 B	0.08 Kb
15 B	0.12 Kb
20 B	0.16 Kb
25 B	0.2 Kb
30 B	0.24 Kb
50 B	0.4 Kb

How to Convert Bytes to Kilobits

To convert bytes to kilobits, multiply the data size by the following conversion ratio: 0.008 kilobits/byte.

Since one byte is equal to 0.008 kilobits, you can use this simple formula to convert:

kilobits = bytes × 0.008

The data size in kilobits is equal to the data size in bytes multiplied by 0.008.

For example, here's how to convert 5 bytes to kilobits using the formula above.

kilobits = (5 B × 0.008) = 0.04 Kb

How Many Kilobits Are in a Byte?

There are 0.008 kilobits in a byte, which is why we use this value in the formula above.

1 B = 0.008 Kb|1 Kb = 125 B

Our byte to kilobit calculator automatically converts your data size measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Bytes and kilobits are both units used to measure data size. Keep reading to learn more about each unit.

What Is a Byte?

8 binary bits. It serves as a primary reference unit for measuring data size across scientific and practical applications. [1]

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.

Learn more about bytes in our Digital Storage Converter.

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). [2]

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.

Learn more about kilobits in our Digital Storage Converter.

When converting data size between bytes (B) and kilobits (Kb), keep full floating-point precision (1 B = 0.008 Kb; 1 Kb = 125 B) during intermediate calculations and round only the final kilobit figure to match your instrument tolerance.

More Byte & Kilobit Conversions

Need to calculate in the opposite direction? Use our kilobits to bytes calculator to switch your starting unit immediately. You can also explore related tools such as converting kilobits to bytes, converting bytes to kilobytes, or converting bytes to megabytes.

Convert from Bytes

Convert to Kilobits

Frequently Asked Questions

There are 0.008 kilobits (Kb) in 1 byte (B). Conversely, 1 kilobit (Kb) is equal to 125 bytes (B).

Digital Storage Converter

Quick Info

Direct Factor: 1 byte (B) equals 0.008 kilobits (Kb).
Inverse Factor: 1 kilobit (Kb) equals 125 bytes (B).
Formula: kilobits = bytes ÷ 125.
Standard Note: Decimal SI (Base-10) vs. Binary IEC (Base-2) & Bits vs. Bytes: Networking speeds and storage drive manufacturers use SI decimal prefixes (1 kB = 1,000 bytes, 1 MB = 1,000,000 bytes, 1 GB = 10⁹ bytes), whereas operating systems and RAM often report binary IEC prefixes (1 KiB = 1,024 bytes, 1 MiB = 1,048,576 bytes, 1 GiB = 1,073,741,824 bytes). Also note that lowercase 'b' denotes bits while uppercase 'B' denotes Bytes (1 Byte = 8 bits).

Units Comparison

Byte (B)

8 binary bits.

Kilobit (Kb)

Equal to 1,000 bits (125 bytes).

Bit (b)

Basic binary digit (1/8 of a byte).

References

[1]NIST / IEC · IEC 80000-13 Binary Prefixes
Source
[2]BIPM · SI Decimal Prefixes (k, M, G, T, P)
Source
[3]NIST CUU · SI Prefixes & Decimal Multiples
Source

Related Categories

Add This Calculator to Your Site

Free HTML widget · 4 embed formats

Embed the interactive Bytes to Kilobits converter on your blog, classroom, or documentation page.

Customize & Get Embed Code

References

NIST · BIPM · ISO

[1]
NIST / IEC (IEC 80000-13 Binary Prefixes)·Digital Storage Metrology Standard — Bytes (B) to Kilobits (Kb)
NIST / IEC Standard
[2]
BIPM (SI Decimal Prefixes (k, M, G, T, P))·Unit Specifications: Byte (B) & Kilobit (Kb)
BIPM Specification
[3]
NIST CUU (SI Prefixes & Decimal Multiples)·Conversion Factors & Mathematical Basis (B to Kb)
NIST CUU Reference

Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories

A–Z Directory →Sitemap

Common ConvertersEveryday metric, imperial, and US customary converters for length, weight, volume, temperature, area, pressure, energy, speed, time, and data.