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Unit Conversion & Everyday Life

Data Transfer Rate Converter

Convert data rates between bits and bytes per second: kbps, Mbps, Gbps, MB/s, MiB/s and more.

Your inputs

Results

100 Mbit/s in MB/s

12.5 MB/s

Conversion type
Exact (from defined constants; display rounded to 12 significant figures)
1 Mbit/s =
0.125 MB/s

✓Exact calculation — rounded only for display

100 Mbit/s in all data transfer rate units12 rows
UnitValue
Bit per second (bit/s)100,000,000
Kilobit per second (kbit/s)100,000
Megabit per second (Mbit/s)100
Gigabit per second (Gbit/s)0.1
Terabit per second (Tbit/s)0.0001
Byte per second (B/s)12,500,000
Kilobyte per second (kB/s)12,500
Megabyte per second (MB/s)12.5
Gigabyte per second (GB/s)0.0125
Kibibyte per second (KiB/s)12,207.03125
Mebibyte per second (MiB/s)11.9209289551
Gibibyte per second (GiB/s)0.0116415322

What this calculator does

Internet speeds are advertised in bits per second, while downloads show bytes per second — a factor of 8 apart.

Formula and method

1 B/s = 8 bit/s; 1 Mbps = 10⁶ bit/s; 1 MiB/s = 8 × 2²⁰ bit/s

Worked example

Calculated by this tool with its default inputs:

Inputs

  • Value: 100
  • From: Megabit per second (Mbit/s)
  • To: Megabyte per second (MB/s)

Results

  • 100 Mbit/s in MB/s: 12.5 MB/s
  • Conversion type: Exact (from defined constants; display rounded to 12 significant figures)
  • 1 Mbit/s =: 0.125 MB/s

How to read the results

A 100 Mbps connection downloads at most about 12.5 MB/s.

Assumptions and limitations

  • Constants follow NIST SP 811 and the SI Brochure. Conversions marked exact follow from defined values; display is rounded to 12 significant figures.

Questions

Mb or MB?

Lowercase b is bits; uppercase B is bytes.

Sources

Methodology and verification

Result type
Exact mathematical calculation (rounded only for display)
Formula version
1.0
Automated verification
7 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
Editorial review
Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.

Privacy

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