Mbps to MB/s converter

Convert a connection speed from megabits per second (Mbps) — how internet speeds are advertised — to megabytes per second (MB/s) — how download progress is usually shown — or back again.

Speed (Mbps)

Result

Speed

How to use this tool

Choose Mbps → MB/s or MB/s → Mbps.
Enter the speed.
Read the converted speed.

Assumptions

A direct unit conversion — real download speeds are usually somewhat below the theoretical maximum due to network overhead.

Technical details: what the fields mean

Speed mbps: Connection speed in megabits per second, as advertised by an ISP or shown in a speed test.

Methodology

MB/s = Mbps ÷ 8, since 1 byte = 8 bits.

Worked example

100Mbps connection

Inputs: Speed: 100 Mbps

Result: 12.50 MB/s

A 1 Gbps (1000 Mbps) full-fibre line

Inputs: Speed: 1000 Mbps

Result: 125.00 MB/s at most; real downloads are usually lower because of protocol overhead and the server's own speed.

A 67 Mbps speed-test result

Inputs: Speed: 67 Mbps

Result: 8.38 MB/s.

MB/s → Mbps: a game launcher shows 30 MB/s

Inputs: Speed: 30 MB/s

Result: 240.0 Mbps — compare this with your plan's speed to see how much of the line the download is using.

Practical guidance

Use this to sanity-check a download progress bar against your advertised connection speed — they're often confused because one uses bits and the other bytes.
Wi-Fi often limits speed below the line rate; test with a cable to the router before blaming the connection.
For how long a file will take, use the download-time calculator.

Common mistakes

Assuming a '100Mbps' connection downloads at 100MB/s — it's actually 12.5MB/s, since Mbps counts bits, not bytes.

FAQs

Is Mbps the same as MB/s?

No — Mbps is megabits per second, MB/s is megabytes per second. Divide Mbps by 8 to get MB/s.

How fast is 1 Gbps in MB/s?

125 MB/s in theory; real-world transfers typically land somewhat below that.

Why is my download slower than my plan's speed?

Advertised speeds are line rates. Protocol overhead, Wi-Fi, other devices on the network and the server's own limits all reduce what one download achieves.

Last reviewed: 2026-09-25

An exact unit conversion — actual real-world transfer speed is usually somewhat below this theoretical figure.

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