Mbps to MB/s Converter – Data Transfer Rate Calculator
Your internet plan is sold in Mbps (megabits per second), but your downloads show MB/s (megabytes per second). Enter any speed below to see what it really means. To convert by hand, divide Mbps by 8.
Internet Speed in Mbps to MB/s Chart
Find your internet plan below to see its top download speed.
| Internet plan | Speed in MB/s | Real speed (approx.) |
|---|---|---|
| 25 Mbps | 3.13 MB/s | ~2.8 MB/s |
| 50 Mbps | 6.25 MB/s | ~5.6 MB/s |
| 100 Mbps (Standard Broadband) | 12.5 MB/s | ~11.3 MB/s |
| 300 Mbps | 37.5 MB/s | ~34 MB/s |
| 500 Mbps | 62.5 MB/s | ~56 MB/s |
| 1000 Mbps (1 Gbps Fiber) | 125 MB/s | ~113 MB/s |
| 2.5 Gbps | 312.5 MB/s | ~281 MB/s |
| 5 Gbps | 625 MB/s | ~563 MB/s |
| 10 Gbps | 1,250 MB/s | ~1,125 MB/s |
Real speed assumes about 10% loss from network overhead. Your speed may also change with Wi-Fi signal and server limits.
How Long Will My Download Take?
Calculate exact file download time based on your file size in Gigabytes (GB) and internet connection speed in Megabits per second (Mbps).
Need the file size in MB? convert MB to GB first.
| File size | 100 Mbps | 300 Mbps | 1 Gbps |
|---|---|---|---|
| 1 GB | 1 min 20 s | 27 s | 8 s |
| 10 GB | 13 min 20 s | 4 min 27 s | 1 min 20 s |
| 50 GB | 1 h 7 min | 22 min | 6 min 40 s |
| 100 GB | 2 h 13 min | 44 min | 13 min 20 s |
Formula: Download time (seconds) = File size (MB) ÷ Speed (MB/s)
These are best-case times. Expect real downloads to take about 10–20% longer. Got raw seconds? Use our time tool to convert seconds to minutes and hours.
How to Convert Mbps to MB/s
One byte has 8 bits. So to change megabits to megabytes, divide by 8.
Example 1: 500 Mbps ÷ 8 = 62.5 MB/s
Example 2: A file downloads at 20 MB/s. 20 × 8 = 160 Mbps
Other Quick Formulas
| From | To | Do this |
|---|---|---|
| Gbps | Mbps | × 1,000 |
| Gbps | MB/s | × 125 |
| Mbps | Kbps | × 1,000 |
| Mbps | KB/s | × 125 |
| Mbps | bytes per second | × 125,000 |
| MB/s | MiB/s | × 0.9537 |
Mbps vs MB/s: What’s the Difference?
Look at the letter b:
- Small b = bit. Mbps (or Mb/s) is used for internet speed.
- Capital B = byte. MB/s (or MBps) is used for download speed and file size.
Since 1 byte = 8 bits, 1 MB/s is 8 times faster than 1 Mbps.
| Feature | Mbps | MB/s |
|---|---|---|
| Full name | Megabits per second | Megabytes per second |
| Unit | Bit (b) | Byte (B) |
| Used for | Internet plans, Wi-Fi, speed tests | Downloads, file transfers, SSD/USB speed |
| 100 of it equals | 12.5 MB/s | 800 Mbps |
Why Is My Download Speed Lower Than My Plan?
Most of the time, nothing is wrong. These are the usual reasons:
- Bits vs bytes: Your plan is in Mbps and your download is in MB/s. Divide by 8 first.
- Network overhead: About 5–10% of the speed is used to send data safely across routing protocols.
- Wi-Fi: Walls and distance from the router slow things down. A wired cable connection is always faster and more stable.
- Server limits: The website, game store, or cloud CDN may send data slower than your plan allows.
- Other devices: Video streaming, smart TVs, or downloads on other phones and PCs share your total household speed.
Data Transfer Rate Units
| Unit | Symbol | Equals (bits per second) | Common use |
|---|---|---|---|
| Bit per second | bps | 1 | Very slow links |
| Kilobit per second | Kbps | 1,000 | Old modems, IoT, audio bitrate converter (kbps) |
| Megabit per second | Mbps | 1,000,000 | Home internet |
| Gigabit per second | Gbps | 1,000,000,000 | Fiber, networks |
| Terabit per second | Tbps | 10¹² | Data centers |
| Byte per second | B/s | 8 | — |
| Kilobyte per second | KB/s | 8,000 | Slow downloads |
| Megabyte per second | MB/s | 8,000,000 | Downloads, USB drives |
| Mebibyte per second | MiB/s | 8,388,608 | Operating systems, storage |
| Gigabyte per second | GB/s | 8,000,000,000 | SSDs |
MB vs MiB: 1 MB = 1,000,000 bytes (decimal). 1 MiB = 1,048,576 bytes (binary). Windows and some apps show MiB but label it "MB", so your speed may look about 5% lower. For binary storage capacities, check our data storage converter.
Frequently Asked Questions
100 Mbps is 12.5 MB/s. In real use, expect about 11–12 MB/s.
1 Gbps is 1,000 Mbps, which equals 125 MB/s.
No. Mbps is megabits per second and MB/s is megabytes per second. 1 MB/s = 8 Mbps.
MB/s is bigger. One MB/s is eight times one Mbps.
Multiply by 8. For example, 50 MB/s × 8 = 400 Mbps.
Yes, for most homes. It gives about 37.5 MB/s, enough for 4K streaming, gaming and large downloads on several devices at once.
Network speed has always been measured in bits. It also gives a bigger number, which looks better in ads.
Yes. It is free, and all calculations run in your browser. Nothing is sent to our server.