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Mbps to MB/s Converter

Convert Mbps to MB/s to see what your internet plan means in the units a download manager shows. It also converts Kbps, Gbps, KB/s, GB/s, and MiB/s.

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Result
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Common internet plans
PlanMB/sMiB/s

How to use the Mbps to MB/s Converter

  1. Enter the Value of the speed. Decimals are allowed.
  2. Pick its Unit, such as Mbps for an internet plan or MB/s for a download manager.
  3. Press Convert. The main result is MB/s for bit-based units and Mbps for byte-based units, with every other unit listed underneath. Use Swap to reverse the direction.

How it works

The speed is converted to bits per second, then to each unit.

UnitBits per second
Kbps10^3
Mbps10^6
Gbps10^9
KB/s8 × 10^3
MB/s8 × 10^6
GB/s8 × 10^9
MiB/s8 × 2^20

So Mbps ÷ 8 = MB/s, and MB/s × 8 = Mbps.

Examples

  • 100 Mbps = 12.5 MB/s = 11.92 MiB/s.
  • 40 Mbps = 5 MB/s, so a 1 GB file (1,000 MB) takes at least 200 seconds, about 3 minutes 20 seconds.
  • 1 Gbps = 125 MB/s.
  • 50 MB/s = 400 Mbps.

Small rates use the same conversion: 1 Kbps = 0.000125 MB/s = 0.001 Mbps. Swap uses the unrounded conversion value, so changing direction does not discard the smaller digits.

Common internet plans in MB/s

PlanMB/sMiB/s
10 Mbps1.251.19
25 Mbps3.1252.98
50 Mbps6.255.96
100 Mbps12.511.92
300 Mbps37.535.76
500 Mbps62.559.6
1,000 Mbps125119.21
2,500 Mbps312.5298.02

These are the maximum rates before network overhead.

Mbps, MB/s, and MB are three different things

Internet providers sell speed in megabits per second, written Mbps with a small b. Browsers, Steam, and download managers show megabytes per second, written MB/s or MBps with a capital B. A byte is 8 bits, so the same connection looks 8 times smaller in MB/s. Nothing is lost: 100 Mbps and 12.5 MB/s are the same speed.

MB on its own, without "per second", is a file size. People often search for "Mbps to MB" when they mean MB per second. To find how much data moves in a given time, multiply the speed in MB/s by the seconds: 5 MB/s for one minute is 300 MB.

For a quick estimate in your head, divide Mbps by 8 for MB/s, or multiply MB/s by 8 for Mbps. 300 Mbps is 37.5 MB/s, and a 20 MB/s download is running at 160 Mbps. To turn a file size into a waiting time, use the download time calculator.

Limitations

  • Negative values give an error.
  • Some download managers show binary MiB/s but label it "MB/s", which makes the speed look about 5% lower than the figures here.
  • The results are ideal rates. Real transfers are slower because of overhead, Wi-Fi, and congestion.

Results are displayed with up to 12 significant digits. Very small or large values use scientific notation, so a non-zero rate is not displayed as zero. Swap keeps the unrounded calculation value; the displayed result may still be rounded.

Read the guide

Internet speed vs download speed

Why a 100 Mbps plan downloads at 12.5 MB/s, how long a file should take, and how much monthly traffic a connection can carry.

Frequently asked questions

How do I convert Mbps to MB/s?

Divide by 8, because one byte is 8 bits. For example, 100 Mbps ÷ 8 = 12.5 MB/s.

How many MB per second is 40 Mbps?

5 MB/s. Divide 40 by 8, because each byte is 8 bits. Real downloads are usually a little slower because of network overhead.

How do I convert MB/s to Mbps?

Multiply by 8. A download running at 25 MB/s is using 200 Mbps of your connection.

What is the difference between Mbps and MBps?

Mbps (lowercase b) is megabits per second, used for internet plans. MBps or MB/s (uppercase B) is megabytes per second, used for download speeds and file sizes.

What is 1 Gbps in MB/s?

125 MB/s, in ideal conditions before any network overhead.

Why is my download slower than my plan?

Overhead, Wi-Fi, congestion, and server limits all reduce the real speed. The Download Time Calculator has an overhead option for a realistic estimate.

Often used together with Mbps to MB/s Converter.