How do you convert kilobytes per second to kilobits per second?

To convert kilobytes per second (KB/s) to kilobits per second (Kbps), multiply the data transfer rate in kilobytes per second by 8 (kilobits per second = kilobytes per second × 8).

What is 5 kilobytes per second in kilobits per second?

5 kilobytes per second (5 KB/s) is equal to 40 kilobits per second (40 Kbps).

Which is larger, 1 kilobytes per second (KB/s) or 1 kilobits per second (Kbps)?

One kilobytes per second (KB/s) is larger than one kilobits per second (Kbps). Specifically, 1 KB/s contains 8 Kbps, whereas 1 Kbps is 0.125 KB/s.

How do I convert back from kilobits per second (Kbps) to kilobytes per second (KB/s)?

To reverse the calculation from Kbps to KB/s, multiply your kilobits per second value by the inverse factor 0.125 (or divide by 8). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round KB/s to Kbps results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 KB/s ≈ 40.00 Kbps). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Kilobytes per Second to Kilobits per Second Converter

Enter the data transfer rate in kilobytes per second below to convert it to kilobits per second.

Kilobits per Second to Kilobytes per Second (Kbps → KB/s)

Convert Kilobytes per Second to Kilobits per Second

Enter a value in kilobytes per second (KB/s) to convert to kilobits per second (Kbps).

Value (KB/s)

From

Result

•

40kilobits per second

5 KB/s = 40 Kbps

Result updates automatically

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Suggested Conversions

Reference:IEC / NIST (IEC 80000-13 Binary & Data Rate Units)

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Kilobytes per Second to Kilobits per Second Conversion Table

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

Kilobytes per Second (KB/s)	Kilobits per Second (Kbps)
1 KB/s	8 Kbps
2 KB/s	16 Kbps
2.5 KB/s	20 Kbps
5 KB/s	40 Kbps
10 KB/s	80 Kbps
15 KB/s	120 Kbps
20 KB/s	160 Kbps
25 KB/s	200 Kbps
30 KB/s	240 Kbps
50 KB/s	400 Kbps

How to Convert Kilobytes per Second to Kilobits per Second

To convert kilobytes per second to kilobits per second, multiply the data transfer rate by the following conversion ratio: 8 kilobits per second/kilobytes per second.

Since one kilobytes per second is equal to 8 kilobits per second, you can use this simple formula to convert:

kilobits per second = kilobytes per second × 8

The data transfer rate in kilobits per second is equal to the data transfer rate in kilobytes per second multiplied by 8.

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

kilobits per second = (5 KB/s × 8) = 40 Kbps

How Many Kilobits per Second Are in a Kilobytes per Second?

There are 8 kilobits per second in a kilobytes per second, which is why we use this value in the formula above.

1 KB/s = 8 Kbps|1 Kbps = 0.125 KB/s

Our kilobytes per second to kilobits per second calculator automatically converts your data transfer rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Kilobytes per Second and kilobits per second are both units used to measure data transfer rate. Keep reading to learn more about each unit.

What Is a Kilobytes per Second?

A kilobytes per second is a unit of data transfer rate equal to 8,000 bits per second (bps), the base unit for data transfer rate. Equal to 8,000 bits per second (8 Kbps). [1]

The kilobytes per second is classified as a metric and SI-compatible unit of data transfer rate. Kilobytes per Second can be abbreviated as KB/s; for example, 1 kilobytes per second can be written as 1 KB/s.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilobytes per second (KB/s) a convenient decimal multiple of the bits per second (bps).

In practice, kilobytes per second (KB/s) are widely used across large-scale industrial, bulk, and macro-level data transfer rate specifications within SI metric workflows, engineering documentation, and technical data sheets.

Learn more about kilobytes per second in our Data Transfer Converter.

What Is a Kilobits per Second?

A kilobits per second is a unit of data transfer rate equal to 1,000 bits per second (bps), the base unit for data transfer rate. 1,000 bits per second. [2]

The kilobits per second is classified as a metric and SI-compatible unit of data transfer rate. Kilobits per Second can be abbreviated as Kbps; for example, 1 kilobits per second can be written as 1 Kbps.

In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilobits per second (Kbps) a convenient decimal multiple of the bits per second (bps).

In practice, kilobits per second (Kbps) are widely used across large-scale industrial, bulk, and macro-level data transfer rate specifications within SI metric workflows, engineering documentation, and technical data sheets.

Learn more about kilobits per second in our Data Transfer Converter.

When converting data transfer rate between kilobytes per second (KB/s) and kilobits per second (Kbps), keep full floating-point precision (1 KB/s = 8 Kbps; 1 Kbps = 0.125 KB/s) during intermediate calculations and round only the final kilobits per second figure to match your instrument tolerance.

More Kilobytes per Second & Kilobits per Second Conversions

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

Convert from Kilobytes per Second

Convert to Kilobits per Second

Frequently Asked Questions

There are 8 kilobits per second (Kbps) in 1 kilobytes per second (KB/s). Conversely, 1 kilobits per second (Kbps) is equal to 0.125 kilobytes per second (KB/s).

Data Transfer Converter

Quick Info

Direct Factor: 1 kilobytes per second (KB/s) equals 8 kilobits per second (Kbps).
Inverse Factor: 1 kilobits per second (Kbps) equals 0.125 kilobytes per second (KB/s).
Formula: kilobits per second = kilobytes per second × 8.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Kilobytes per Second (KB/s)

Equal to 8,000 bits per second (8 Kbps).

Kilobits per Second (Kbps)

1,000 bits per second.

Bits per Second (bps)

Base rate of data transmission.

References

[1]IEC / NIST · IEC 80000-13 Binary & Data Rate Units
Source
[2]BIPM · Decimal Bit-Rate Prefixes
Source
[3]NIST OWM · SI Units — Time & Frequency
Source

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References

NIST · BIPM · ISO

[1]
IEC / NIST (IEC 80000-13 Binary & Data Rate Units)·Data Transfer Metrology Standard — Kilobytes per Second (KB/s) to Kilobits per Second (Kbps)
IEC / NIST Standard
[2]
BIPM (Decimal Bit-Rate Prefixes)·Unit Specifications: Kilobytes per Second (KB/s) & Kilobits per Second (Kbps)
BIPM Specification
[3]
NIST OWM (SI Units — Time & Frequency)·Conversion Factors & Mathematical Basis (KB/s to Kbps)
NIST OWM Reference

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