Mbps to MB/s converter
To convert Mbps to MB/s, divide by 8. A 300 Mbps plan can download at up to 37.5 MB/s, and a 1 Gbps plan at up to 125 MB/s.
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
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Formula
1 Mbps = 1,000,000 bits and 1 MB/s = 8,000,000 bits, so:
Common conversions
| 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 |
Examples: what your plan looks like in a download window
Use this conversion before you judge a download. It tells you the highest MB/s a plan can show, so you know whether a reading is good or a sign of a problem.
- 100 Mbps plan. Ceiling 12.5 MB/s. Readings of 10.5–12 MB/s are normal.
- 500 Mbps plan. Ceiling 62.5 MB/s. A 100 GB game takes at least 1,600 seconds (26 min 40 s) at full speed; the download time calculator can add a real-world efficiency factor.
- 2 Gbps plan. Ceiling 250 MB/s, but only on a device and router with ports faster than gigabit. Through a 1 Gbps port the best case is about 117.5 MB/s, the MB/s equivalent of the typical 940 Mbps gigabit result.
Pitfall: your app may show 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. The converter above lists MiB/s separately so you can match what your app shows.
Beyond that, every real transfer loses some capacity to TCP/IP headers, and Wi-Fi usually loses more. If your MB/s reading is far below the ceiling on a wired connection, compare a speed test with your plan in the speed test checker.
When to use which unit
Mbps is for plans, routers and speed tests. MB/s is for files, drives and download bars. To check a reading you already have, go the other way with MB/s to Mbps. For 10 GbE and storage-class speeds, Mbps to GB/s keeps the numbers short. Mbps vs MB/s explains the two units 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.
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.