100 Mbps to MB/s

100 Mbps = 12.5 MB/s

100 megabits per second equals 12.5 megabytes per second.

How to convert 100 Mbps to MB/s

Use the formula MB/s = Mbps ÷ 8:

MB/s = 100 ÷ 8
MB/s = 12.5

So 100 Mbps = 12.5 MB/s.

Rounded values and quick estimate

Rounded to a whole number: 13 MB/s
Rounded to one decimal place: 12.5 MB/s
Conversion factor: 1 megabit per second = 0.125 megabytes per second

This conversion is exact, so there is no need to estimate: just divide by 8.

100 Mbps in other units

A 100 Mbps internet plan downloads at most 12.5 MB per second — a 1 GB file takes about 80 seconds in ideal conditions.

Megabytes per second: 12.5 MB/s
Gigabits per second: 0.1 Gbps
Kilobits per second: 100000 kbps

100 Mbps and nearby values

Megabits per second	Megabytes per second
96 Mbps	12 MB/s
97 Mbps	12.13 MB/s
98 Mbps	12.25 MB/s
99 Mbps	12.38 MB/s
100 Mbps	12.5 MB/s
101 Mbps	12.63 MB/s
102 Mbps	12.75 MB/s
103 Mbps	12.88 MB/s
104 Mbps	13 MB/s

About megabits per second and megabytes per second

Megabits per second is how internet and network speeds are advertised. There are 8 bits in a byte, so 100 Mbps moves at most 12.5 megabytes per second.

Megabytes per second is how browsers and download managers show transfer speed. 1 MB/s = 8 Mbps.

Related conversions

Frequently asked questions

What is 100 Mbps in MB/s?

100 megabits per second is 12.5 megabytes per second (100 Mbps = 12.5 MB/s).

How do you convert 100 Mbps to MB/s?

Apply MB/s = Mbps ÷ 8: MB/s = 100 ÷ 8, MB/s = 12.5.

How many megabits per second is 12.5 MB/s?

12.5 MB/s is about 100 megabits per second.

Why is my 100 Mbps download only 12 MB/s?

Internet speeds are sold in megabits; downloads show megabytes. Divide by 8: 100 Mbps ≈ 12.5 MB/s.