By Tim King · Updated 1 October 2026

Mbps to MB/s and MB/s to Mbps Converter

Convert Megabits and Megabytes per Second

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megabytes per second to megabits per second table ↓

megabits per second to megabytes per second formula

MB/s = Mbps ÷ 8

1 megabit per second = 0.125 megabytes per second, so multiply megabits per second by 0.125. Going the other way, 1 megabyte per second = 8 megabits per second.

megabits per second to megabytes per second table

megabits per second (Mbps)	megabytes per second (MB/s)
1	0.125
5	0.625
10	1.25
16	2
20	2.5
30	3.75
36	4.5
50	6.25
67	8.375
70	8.75
80	10
100	12.5
150	18.75
200	25
300	37.5
500	62.5
900	112.5
1,000	125
2,000	250
2,500	312.5
5,000	625
10,000	1,250

How many megabytes per second in megabits per second?

10 Mbps = 1.25 MB/s. There are 1.25 megabytes per second in 10 megabits per second.

50 Mbps = 6.25 MB/s. There are 6.25 megabytes per second in 50 megabits per second.

100 Mbps = 12.5 MB/s. There are 12.5 megabytes per second in 100 megabits per second.

500 Mbps = 62.5 MB/s. There are 62.5 megabytes per second in 500 megabits per second.

1,000 Mbps = 125 MB/s. There are 125 megabytes per second in 1,000 megabits per second.

megabytes per second to megabits per second formula

Mbps = MB/s × 8

1 megabyte per second = 8 megabits per second, so multiply megabytes per second by 8, or divide by 0.125.

megabytes per second to megabits per second table

megabytes per second (MB/s)	megabits per second (Mbps)
0.5	4
1	8
2	16
5	40
10	80
12.5	100
20	160
25	200
30	240
50	400
100	800
125	1,000
250	2,000
500	4,000
1,000	8,000

How many megabits per second in megabytes per second?

1 MB/s = 8 Mbps. There are 8 megabits per second in 1 megabytes per second.

5 MB/s = 40 Mbps. There are 40 megabits per second in 5 megabytes per second.

10 MB/s = 80 Mbps. There are 80 megabits per second in 10 megabytes per second.

50 MB/s = 400 Mbps. There are 400 megabits per second in 50 megabytes per second.

100 MB/s = 800 Mbps. There are 800 megabits per second in 100 megabytes per second.

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How the Mbps To MB/s works

This mbps to mb/s converter divides by 8 as you type, turning the megabits per second your broadband provider advertises into the megabytes per second a browser, Steam or a download manager displays. Lowercase b is bits and uppercase B is bytes, and eight bits make a byte. Press the swap button to turn MB/s into Mbps.

Internet providers sell speed in megabits per second because the number is eight times bigger and because networks move bits. Download managers, game launchers and file copy dialogs show megabytes per second because files are measured in bytes. Put a 100 Mbps package next to a download that peaks at 11.8 MB/s and it looks as though the line is failing, when it is working perfectly.

Mbps to mb/s: bits and bytes

Mbps (Mb/s): a million bits per second. Broadband, mobile data, Wi-Fi and Ethernet are all rated this way.
MB/s: a million bytes per second, eight times as much data. Downloaders, file copies and disk benchmarks use it.
Gbps: 1,000 Mbps. A gigabit connection is 125 MB/s at most.
MiB/s: some tools, including Steam and many Linux utilities, show binary mebibytes per second, about 4.6% smaller than MB/s.

The formula

MB/s = Mbps ÷ 8, and Mbps = MB/s × 8. Network speeds use decimal prefixes, so no 1,024 factor is involved unless your download tool reports MiB/s.

Worked examples

The first example is a 67 Mbps fibre line. 67 ÷ 8 = 8.4 MB/s, so a 4 GB game patch would take about 4,000 ÷ 8.4 = 476 seconds, roughly 8 minutes.

The second example goes the other way. A file copy that runs at 30 MB/s over a home network is 30 × 8 = 240 Mbps, well within a gigabit router's limit.

A third example: a 500 Mbps plan peaks at 62.5 MB/s, but expect about 55 to 58 MB/s in practice once protocol overhead is taken out.

How many MB/s from common broadband speeds

There are 8 megabits in a megabyte, so every Mbps figure divides by 8. The table shows common package speeds and how long a 1 GB download would take at full speed.

Broadband speeds in Mbps with MB/s and the time to download 1 GB

Mbps	MB/s	Time for 1 GB
1	0.125	2.2 h
2	0.25	1.1 h
5	0.625	26.7 min
10	1.25	13.3 min
16	2	8.3 min
20	2.5	6.7 min
25	3.125	5.3 min
30	3.75	4.4 min
40	5	3.3 min
50	6.25	2.7 min
75	9.375	1.8 min
80	10	1.7 min
100	12.5	1.3 min
150	18.75	53 s
200	25	40 s
250	31.25	32 s
300	37.5	27 s
500	62.5	16 s
900	112.5	9 s
1,000	125	8 s
2,000	250	4 s
2,500	312.5	3.2 s
5,000	625	1.6 s
10,000	1,250	0.8 s

How to read the result

Mbps equals gives the speed in megabytes per second, for example 100 Mbps equals 12.5 MB/s.
Conversion shows the factor, 1 Mbps = 0.125 MB/s. After a swap it reads 1 MB/s = 8 Mbps.
Inverse gives the factor for the opposite direction.

Treat the result as the ceiling. Real downloads usually reach 85% to 95% of it on a wired connection, and less over Wi-Fi.

Tips and pitfalls

Read the case. Mb is megabits and MB is megabytes. Advertising and download dialogs rarely spell it out.
Overhead takes 5% to 10%. TCP/IP headers, encryption and retransmissions use part of the line, so 100 Mbps gives about 11 to 11.8 MB/s of file data.
The slowest link wins. A 1 Gbps line is capped by a 100 Mbps Ethernet port, an old Wi-Fi adapter, or a server that sends more slowly.
Upload is usually slower. Most broadband is asymmetric; check the upload figure for video calls and backups.
Converting file sizes. For the size side of the sum, use GB to MB or KB to MB.

Sources: NIST prefixes for binary multiples.

Checked against: 100 Mbps = 12.5 MB/s (8 bits per byte)

FAQ

How many MB/s is 100 Mbps?

100 Mbps is 12.5 MB/s at most, because there are 8 bits in a byte. After protocol overhead, a typical download on a 100 Mbps line runs at about 11 to 11.8 MB/s on a wired connection.

How many MB/s is 1 Gbps?

1 Gbps is 1,000 Mbps, which is 125 MB/s. Real downloads over gigabit fibre usually reach 110 to 118 MB/s, and often less over Wi-Fi or when the server at the other end is the bottleneck.

Why is my download speed so much lower than my broadband speed?

Your provider quotes megabits per second and your download tool shows megabytes per second, which is eight times smaller. A 200 Mbps line downloading at 24 MB/s is running at about 96% of its rated speed.

Is Mbps the same as MB/s?

No. Mbps is megabits per second and MB/s is megabytes per second. A byte is eight bits, so 1 MB/s equals 8 Mbps. The lowercase or uppercase b is the only visible difference.

What speed do I need to download at 10 MB/s?

10 MB/s needs 80 Mbps of line speed in theory. Allowing for overhead, a package of around 90 Mbps or more gives a steady 10 MB/s, so an 80 Mbps fibre plan will usually fall slightly short.