MB to Mbps Converter

Convert Megabytes (MB) to Megabits per second (Mbps) to understand your true download speed.

Enter MB/s (Megabytes)

How to convert MB/s to Mbps

11 Byte = 8 bits.
2Multiply the MB/s value by 8 to get Mbps.
3Example: A 10 MB/s download speed requires an 80 Mbps connection.

Mbps = MB/s × 8

MB vs Mbps: File Size vs Network Speed

The most common point of confusion in networking and downloading is the difference between a Megabyte (MB) and a Megabit per second (Mbps). Though they sound almost identical and use similar abbreviations, they measure entirely different things.

Megabytes (MB) with a capital 'B', measure file size and storage. When you look at a photo on your phone, a song on your computer, or a hard drive's capacity, you are dealing in Bytes.

Megabits per second (Mbps) with a lowercase 'b', measure network transfer speed. When you pay for an internet plan from Comcast, AT&T, or Spectrum, the speed is advertised in bits per second.

The Conversion Rule

To bridge the gap between file size (MB) and download speed (Mbps), you must know the golden rule of computing: 1 Byte = 8 bits. Therefore, 1 Megabyte equals 8 Megabits.

If you want to know how long a file will take to download, you must convert the file size into Megabits. To convert MB to Mbps (when looking for equivalent size), you multiply the Megabytes by 8.

Real-world Example:

Imagine you want to download a 100 MB video file. Because 1 Byte is 8 bits, that file is actually 800 Megabits in size.

If your internet speed is 100 Mbps, it will take exactly 8 seconds to download (800 ÷ 100 = 8).

If you are trying to calculate exactly how long a download will take based on your internet speed, try our dedicated Download Time Calculator.

Common MB File Sizes to Megabits (Mbps)

File Size (MB)	Total Size in Megabits (Mb)	Typical File Type
5 MB/s	40 Mbps	High-Res Photograph
12 MB/s	96 Mbps	High-Quality MP3 Song
50 MB/s	400 Mbps	Short YouTube Video
150 MB/s	1200 Mbps	Mobile App Update
1000 MB/s	8000 Mbps	1GB 1080p Movie

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Frequently Asked Questions

Why is my 100 Mbps internet only downloading at 12.5 MB/s?

Because internet speeds are measured in Megabits (Mbps) and file downloads in Megabytes (MB/s). Since 1 Byte equals 8 bits, you must divide your Mbps by 8 to get your true MB/s download speed. 100 ÷ 8 = 12.5 MB/s.

What's the difference between MB and Mb?

Capital 'B' stands for Bytes, while lowercase 'b' stands for bits. Bytes are used for file sizes, bits are used for network speeds.

How fast should my internet be for 4K streaming?

For a smooth 4K streaming experience without buffering on platforms like Netflix, you need a stable connection of at least 25 Mbps.

Is 50 MB/s a fast download speed?

Yes, 50 MB/s is very fast. It translates to an internet connection of 400 Mbps, which is well above the global average.

Does a router limit my Mbps speed?

Yes. Even if you pay for 1000 Mbps, an older Wi-Fi 4 or 5 router might bottleneck your connection to 300 Mbps or lower over a wireless connection.

Why do ISPs advertise in Mbps instead of MB/s?

Networking hardware operates at the bit level, making bits the standard unit. Additionally, 1000 Mbps sounds much faster to a consumer than 125 MB/s, which provides a marketing advantage.