Data Transfer Rate Converter

Runs locally in your browser. Nothing leaves your device.

Instantly convert data transfer rates between bit/s, Mbit/s, Gbit/s, B/s, MB/s, MiB/s and other SI and IEC rates.

Use a comma or period as the decimal separator; do not use thousands separators.

All units

Base units

bit per second (bit/s)
100,000,000
byte per second (B/s)
12,500,000

Decimal (SI) - bits

kilobit per second (kbit/s)
100,000
megabit per second (Mbit/s)
From
100
gigabit per second (Gbit/s)
0.1
terabit per second (Tbit/s)
0.0001
petabit per second (Pbit/s)
1e-7
exabit per second (Ebit/s)
1e-10

Decimal (SI) - bytes

kilobyte per second (kB/s)
12,500
megabyte per second (MB/s)
To
12.5
gigabyte per second (GB/s)
0.0125
terabyte per second (TB/s)
0.0000125
petabyte per second (PB/s)
1.25e-8
exabyte per second (EB/s)
1.25e-11

Binary (IEC) - bits

kibibit per second (Kibit/s)
97,656.25
mebibit per second (Mibit/s)
95.3674316
gibibit per second (Gibit/s)
0.0931322575
tebibit per second (Tibit/s)
0.0000909494702
pebibit per second (Pibit/s)
8.8817842e-8
exbibit per second (Eibit/s)
8.67361738e-11

Binary (IEC) - bytes

kibibyte per second (KiB/s)
12,207.0313
mebibyte per second (MiB/s)
11.920929
gibibyte per second (GiB/s)
0.0116415322
tebibyte per second (TiB/s)
0.0000113686838
pebibyte per second (PiB/s)
1.11022302e-8
exbibyte per second (EiB/s)
1.08420217e-11

How it works

  1. 1

    Enter value and source unit

    Enter the transfer rate and choose the source unit.

  2. 2

    Choose the target unit

    Choose the target unit, even across the decimal and binary systems.

  3. 3

    Copy the result

    Copy one or all results for further use.

Good to know

The data transfer rate converter converts directly in your browser between base units, decimal SI units (bit and byte), and binary IEC units (bit and byte). Mbit/s measures megabits per second, MB/s measures megabytes per second — one byte equals eight bits.

Calculation runs locally in the browser. Decimal units use a factor of 1000, binary IEC units a factor of 1024. Network figures are also often theoretical maxima; protocol overhead reduces real throughput.

Typical use cases

Interpret internet speed as download time

Convert a plan's advertised Mbit/s speed into MB/s to estimate the actual download time for a file.

Compare network and storage throughput

Convert transfer rates between decimal and binary units to compare network figures with storage specs.

Tips for better results

Don't confuse bit and byte

Internet providers usually state speeds in Mbit/s, download managers often show MB/s — a factor-8 difference.

Critically assess theoretical maximum values

Advertised network speeds are often theoretical maxima — protocol overhead reduces the actually usable rate.

Features

  • SI and IEC units separated

    Decimal SI units and binary IEC units for bit and byte are cleanly separated.

  • Local conversion

    Calculation happens directly in the browser, without transmission to a server.

  • Built-in Mbit/s-vs-MB/s explanation

    A note explains directly in the tool the difference between Mbit/s, MB/s, and MiB/s.

Frequently asked questions

Why is my download speed slower than advertised?

Because Mbit/s (the advertised unit) and MB/s (what download displays often show) differ by a factor of 8, and protocol overhead additionally reduces the real rate.

Are my inputs uploaded?

No. Conversion runs entirely locally in the browser.

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