Explains the distinction between decimal prefixes such as MB and binary prefixes such as MiB.
Unit converters
Data-transfer speed
Enter your values below for a clear, instant result.
Data-transfer speedInstant result
Decimals
Formula result = input × 1 ÷ 1000. 1 bit/s = 0.001 kb/s
Common examples
One value, several units
Kilobits per second0.001 kb/s
Megabits per second0 Mb/s
Gigabits per second0 Gb/s
Kilobytes per second0.0001 kB/s
Megabytes per second0 MB/s
Conversion table
| bit/s | kb/s |
|---|---|
| 1 bit/s | 0.001 kb/s |
| 2 bit/s | 0.002 kb/s |
| 5 bit/s | 0.005 kb/s |
| 10 bit/s | 0.01 kb/s |
| 25 bit/s | 0.025 kb/s |
| 50 bit/s | 0.05 kb/s |
| 100 bit/s | 0.1 kb/s |
Conversion chart
1 bit/s0.001 kb/s
5 bit/s0.005 kb/s
10 bit/s0.01 kb/s
25 bit/s0.025 kb/s
50 bit/s0.05 kb/s
Worked example
100 Mb/s equals 12.5 MB/s.
Unit definition
Bits per second (bit/s) One bits per second equals 1 bit per second.
Unit history
Bits per second is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert bit/s to bit per second.
3. Convert the base value to kb/s and apply your display precision.
Understand the result before using it
Data-transfer speed expresses a data rate in bits or bytes per second with the correct multiplier. The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 1 ÷ 1000
Assumptions
- The source and target selections represent the same physical quantity or supported notation.
- The entered value is valid for the selected relationship and uses the source unit shown.
- Published unit definitions and conventional conversion factors apply under their stated conditions.
Worked example
100 Mb/s equals 12.5 MB/s.
When to use it
Good uses
- Translate a data-transfer speed value found in a document, specification, recipe, or measurement.
- Compare values reported in different unit systems.
- Check a manual conversion and control the displayed precision.
Limitations
Common mistakes to avoid
- A byte contains eight bits; advertised network speed does not guarantee the same application download rate.
- Do not add meaningful digits beyond the precision of the original measurement.
- Confirm regulated, safety-critical, laboratory, and contractual values against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
What does the Data-transfer speed converter do?
Data-transfer speed expresses a data rate in bits or bytes per second with the correct multiplier. It does not change the physical quantity represented by the input.
What formula does the Data-transfer speed converter use?
result = input × 1 ÷ 1000
Why can a Data-transfer speed converter result be rounded?
UnitMora calculates with JavaScript double-precision numbers, then formats the result using your selected decimal or significant-figure setting. The unrounded value may contain more digits than are displayed.
What is the most common data-transfer speed conversion mistake?
A byte contains eight bits; advertised network speed does not guarantee the same application download rate.
Clear answers, without the guesswork
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