Free Mbps to MB/s converter. Instantly convert internet speeds between megabits per second (Mbps) and megabytes per second (MB/s). Understand the difference between ISP-advertised speeds and actual download speeds.
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Confused why your 100 Mbps internet downloads files at only 12.5 MB/s? This converter explains the difference and instantly converts between megabits per second (Mbps) and megabytes per second (MB/s). Essential for understanding real download speeds.
Internet Service Providers (ISPs) advertise speeds in Mbps (megabits per second), but your computer shows download speeds in MB/s (megabytes per second). Since 1 byte = 8 bits, you divide Mbps by 8 to get MB/s. That's why 100 Mbps equals only 12.5 MB/s.
Conversion Formula
MB/s = Mbps ÷ 8 | Mbps = MB/s × 8Convert ISP-advertised speeds to actual file download rates you'll see.
Calculate how long files will actually take to download on your connection.
SSDs and HDDs measure in MB/s while networks use Mbps—now you can compare.
Choose the right internet plan by understanding real-world performance.
If you pay for 500 Mbps, speed tests in MB/s should show ~62.5 MB/s.
A 100 GB game on 100 Mbps takes about 2.2 hours (100,000 MB ÷ 12.5 MB/s).
4K streaming needs 25 Mbps (3.125 MB/s), 1080p needs 5 Mbps (0.625 MB/s).
Calculate upload times using your upload speed in Mbps converted to MB/s.
Using megabits makes speeds appear 8x larger. 100 Mbps sounds faster than 12.5 MB/s, even though they're the same speed. It's a marketing convention that stuck from early telecommunications.