Mbps to MB/s converter (and MB/s to Mbps)
Divide Mbps by 8 to get MB/s, and multiply MB/s by 8 to get Mbps. A 300 Mbps plan downloads at up to 37.5 MB/s, and a game launcher showing 25 MB/s is pulling 200 Mbps.
Tip: paste a reading like “12.4 MB/s” and the unit is picked for you.
1 Mbps equals:
- bps1,000,000
- kbps1,000
- Mbps1
- Gbps0.001
- B/s125,000
- kB/s125
- MB/s0.125
- GB/s0.000125
- MiB/s0.119209
Runs entirely in your browser. Nothing you type is sent anywhere.
Formula
1 Mbps = 1,000,000 bits and 1 MB/s = 8,000,000 bits, so:
Common conversions
Mbps → MB/s
| Mbps | MB/s |
|---|---|
| 10 Mbps | 1.25 MB/s |
| 25 Mbps | 3.125 MB/s |
| 50 Mbps | 6.25 MB/s |
| 100 Mbps | 12.5 MB/s |
| 200 Mbps | 25 MB/s |
| 300 Mbps | 37.5 MB/s |
| 500 Mbps | 62.5 MB/s |
| 1,000 Mbps | 125 MB/s |
| 2,000 Mbps | 250 MB/s |
MB/s → Mbps
| MB/s | Mbps |
|---|---|
| 0.5 MB/s | 4 Mbps |
| 1 MB/s | 8 Mbps |
| 5 MB/s | 40 Mbps |
| 10 MB/s | 80 Mbps |
| 12.5 MB/s | 100 Mbps |
| 25 MB/s | 200 Mbps |
| 50 MB/s | 400 Mbps |
| 100 MB/s | 800 Mbps |
| 125 MB/s | 1,000 Mbps |
Plan speeds in Mbps and MB/s
| Plan | Maximum MB/s | Typical MB/s (≈90%) | 1 GB takes | 50 GB takes |
|---|---|---|---|---|
| 25 Mbps | 3.125 MB/s | 2.8 MB/s | 5 minutes, 56 seconds | 4 hours, 56 minutes, 18 seconds |
| 50 Mbps | 6.25 MB/s | 5.6 MB/s | 2 minutes, 58 seconds | 2 hours, 28 minutes, 9 seconds |
| 100 Mbps | 12.5 MB/s | 11.3 MB/s | 1 minute, 29 seconds | 1 hour, 14 minutes, 4 seconds |
| 200 Mbps | 25 MB/s | 22.5 MB/s | 44 seconds | 37 minutes, 2 seconds |
| 300 Mbps | 37.5 MB/s | 33.8 MB/s | 30 seconds | 24 minutes, 41 seconds |
| 500 Mbps | 62.5 MB/s | 56.3 MB/s | 18 seconds | 14 minutes, 49 seconds |
| 1 Gbps | 125 MB/s | 112.5 MB/s | 9 seconds | 7 minutes, 24 seconds |
| 2 Gbps | 250 MB/s | 225 MB/s | 4 seconds | 3 minutes, 42 seconds |
Typical assumes about 90% of the plan speed arrives as file data (protocol overhead and real-world losses). The server, Wi-Fi and disk also have to keep up.
A speed test and a download window measure different things
Speed test sites report megabits per second, the same unit as your plan, so you can compare them directly. Steam, browsers, app stores and cloud-drive clients report megabytes per second, because they are writing a file to disk. Before you compare a download with your plan, multiply it by 8:
- Steam on a 500 Mbps plan shows 60 MB/s. 60 × 8 = 480 Mbps, or 96% of the plan. That is as good as it gets.
- A browser download on a 100 Mbps plan shows 11.2 MB/s. 11.2 × 8 = 89.6 Mbps, about 90% of the plan, which is normal once protocol overhead is counted.
- A console update on a 1 Gbps plan shows 45 MB/s. That is 360 Mbps, only 36% of the plan. The download server, Wi-Fi or the console's own storage is the likely limit, so run a wired speed test and compare it in the speed test checker before blaming the line.
Steam readings have their own settings to check, such as the download region and bandwidth limit; Steam download speed covers them.
Going the other way: what should the download bar show?
Dividing a plan speed by 8 gives the ceiling for a single download. The plan table below lists common tiers with a typical figure at about 90%, so a reading near that column means the connection is working. Two cases need care:
- Plans above 1 Gbps. A 2 Gbps plan allows 250 MB/s, but only on a device with a port faster than gigabit. Through a Gigabit Ethernet port the best case is about 117.5 MB/s, the byte equivalent of the typical 940 Mbps gigabit test result.
- Slow plans. Below about 10 Mbps many apps switch to kilobytes per second; a 10 Mbps line peaks at 1,250 kB/s, which the kB/s to Mbps converter handles in both directions.
When the app counts in MiB/s
Some operating systems and download tools divide by 1,048,576 instead of 1,000,000 and still write "MB/s". In those units a 500 Mbps plan peaks at about 59.6 MiB/s rather than 62.5 MB/s. That 4.6% gap is labelling, not lost speed. Converting back, 50 MiB/s is 419.43 Mbps, not 400. The converter above lists MiB/s separately so you can match what your app shows.
Related units: kbps, B/s and GB/s
Encoder and audio settings are written in kilobits, which need no ×8 step: use kbps to Mbps. Raw byte counts from logs or code belong in the bytes to Mbps converter, and storage-class speeds read better in GB/s to Mbps. For the units themselves, see what is Mbps and what is MB/s, or Mbps vs MB/s for the two side by side.
Frequently asked questions
What is 300 Mbps in MB/s?
300 Mbps is 37.5 MB/s. Divide megabits per second by 8 because one byte is 8 bits; expect roughly 32–36 MB/s in a real download.
Is 1 MB/s faster than 1 Mbps?
Yes, eight times faster. 1 MB/s is one million bytes per second and each byte is 8 bits, so it equals 8 Mbps.
What download speed in MB/s should I get on a 1 Gbps plan?
The theoretical maximum is 125 MB/s. On wired gigabit Ethernet, speed tests usually top out near 940 Mbps, which is about 117.5 MB/s, and a busy server or Wi-Fi can bring it lower.
Why does my computer show 59.6 instead of 62.5 on a 500 Mbps plan?
It is counting in mebibytes (MiB, 1,048,576 bytes). 62,500,000 bytes per second ÷ 1,048,576 ≈ 59.6 MiB/s. Both describe the same speed.
Can I make Steam show Mbps instead of MB/s?
Yes. Steam's download settings include an option to display download rates in bits per second, which you can then compare directly with your plan.