Speed Converter

Enter a speed in either Mbps or MB/s to see immediate conversion.

Converted Transfer Rate

12.50 MB/s

100.00 Mbps = 12.50 MB/s

Internet Speed 100.00 Mbps (Megabits/s)

Download Rate 12.50 MB/s (Megabytes/s)

Raw Bits per Second 100,000,000 bps

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The Difference Between Mbps and MB/s

Mbps stands for Megabits per second, which measures digital data transmission speed over a network. MB/s stands for Megabytes per second, which measures file size and storage volume.

Because exactly 8 bits make 1 byte, you must divide your internet connection speed (Mbps) by 8 to determine your actual file download rate (MB/s).

Conversion Formulas

MB/s = Mbps ÷ 8 | Mbps = MB/s × 8

MB/s Megabytes per second (MB/s) — Data storage transfer rate (file size per second)
Mbps Megabits per second (Mbps) — Internet connection bandwidth (bits per second ÷ 1,000,000)
8 Bits per Byte Ratio (constant) — Fundamental constant: exactly 8 bits make 1 byte

Example: 100 Mbps Internet Connection

Understanding why a 100 Mbps connection downloads at 12.5 MB/s:

1
Identify the 8-to-1 Bit/Byte Ratio 1 Byte (B) = 8 bits (b) Capital "B" stands for Bytes (storage); lowercase "b" stands for bits (network bandwidth).
2
Divide Megabits per Second by 8 100 Mbps ÷ 8 = 12.5 MB/s
3
Reverse Check: Multiply Megabytes by 8 12.5 MB/s × 8 = 100 Mbps A 100 Mbps internet plan can download at a maximum sustained rate of 12.5 Megabytes each second.

Result 100 Mbps = 12.5 MB/s theoretical maximum download throughput

Quick Reference Conversion Table

A quick reference for common residential broadband speeds and their maximum file transfer rates:

Internet Speed (Mbps)	Download Rate (MB/s)	Typical Use Case
10 Mbps	1.25 MB/s	Basic web browsing & SD video
25 Mbps	3.13 MB/s	4K Ultra HD single stream
50 Mbps	6.25 MB/s	Multi-device HD streaming
100 Mbps	12.50 MB/s	Standard fast home broadband
200 Mbps	25.00 MB/s	Fast gaming & large file downloads
300 Mbps	37.50 MB/s	Heavy multi-user households
500 Mbps	62.50 MB/s	Ultra-fast downloads & cloud backups
1,000 Mbps (1 Gbps)	125.00 MB/s	Gigabit Fiber high-speed connections

Frequently Asked Questions

Why does my 100 Mbps connection only download at 12.5 MB/s?

There is no speed loss. Internet Service Providers (ISPs) advertise speeds in Megabits per second (Mbps), while web browsers, Steam, and operating systems report download progress in Megabytes per second (MB/s). Because 1 byte contains 8 bits, 100 Mbps equals exactly 12.5 MB/s.

What is the capitalization difference between Mbps and MB/s?

The letter "b" capitalization is critical: "Mbps" (or Mb/s) with a lowercase "b" represents Megabits per second (network speed). "MB/s" (or MBps) with an uppercase "B" represents Megabytes per second (file storage).

How do I convert 1 Gbps to MB/s?

1 Gbps equals 1,000 Mbps. Dividing 1,000 Mbps by 8 gives exactly 125 MB/s maximum theoretical download speed.

How do I test my actual Mbps speed?

Use our free Internet Speed Test to measure your current live download and upload speeds in both Mbps and MB/s.