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Data Transfer Rate Converter — Mbps to MB/s

Convert Mbps to MB/s, Gbps and binary units such as MiB/s. Compare 12 data rate units, copy results and estimate file transfer time. Free, no sign-up.

About Data Transfer Rate Converter — Mbps to MB/s

Convert Mbps to MB/s, Gbps and binary units

To convert Mbps to MB/s, divide by 8. For example, 100 Mbps = 12.5 MB/s, while 1 Gbps = 1,000 Mbps = 125 MB/s. To convert MB/s to Mbps, multiply by 8.

Choose a source and destination unit to compare connection speeds with download speeds. All 12 results are also shown together: bit/s, kbit/s, Mbit/s, Gbit/s, Tbit/s, B/s, kB/s, MB/s, GB/s, KiB/s, MiB/s and GiB/s. Mbps and Mbit/s are equivalent spellings.

Enter an ASCII number of up to 100 characters. Zero, negative values, decimals and scientific notation such as 1e2 are supported. Do not include commas, full-width digits or units. Changing or swapping units keeps the entered number and interprets it in the new source unit.

Bits, bytes and decimal versus binary prefixes

Two separate distinctions matter. Lowercase b means bits and uppercase B means bytes; one byte contains eight bits. Decimal prefixes use powers of 1,000, while binary prefixes use powers of 1,024.

  • 1 Mbps = 1,000,000 bit/s = 125,000 B/s = 125 kB/s.
  • 1 MiB/s = 1,048,576 B/s = 1.048576 MB/s = 8.388608 Mbps.
  • 1 Gbps = 125 MB/s, or approximately 119.21 MiB/s.

Check the unit stated by your download manager or operating system. MB/s and MiB/s are different; this converter does not guess which one a source intended.

Estimate download and upload time using the converted speed

Select Calculate transfer time at this speed to open the file transfer time calculator in English. The original speed is passed through temporary storage in the same browser tab, without rounding it to the displayed result. The transfer calculator starts at 0% additional throughput reduction.

Transfer time accepts positive speeds from 1 bps to 1 Pbps. Zero, negative numbers and speeds outside that range are available for unit conversion only. If browser storage is unavailable, copy the value and enter it manually in the transfer calculator. The return link restores the original conversion input, not later edits in the transfer calculator.

This is a unit converter, not a speed test. Advertised link speed does not guarantee actual throughput. Protocol overhead, retransmissions, Wi-Fi conditions, shared bandwidth and storage performance can reduce transfer speed. When using measured throughput, keep additional reduction at 0% to avoid counting the same loss twice.

Precision and input limits

Results are approximate and display up to 12 significant digits. Very small or large values use scientific notation. Results outside the numeric representation range are marked Out of range, and precision decreases near the smallest values. Display precision is not a guarantee of measurement accuracy.

Negative inputs can represent differences between speeds; they are not real transfer rates. Empty or invalid input clears the result until corrected. Calculations run in your browser and require no account.

Frequently asked questions

Q. How many MB/s is 100 Mbps?
100 Mbps is 12.5 MB/s: divide the megabit value by 8 because one byte contains eight bits. This is a unit conversion; actual download speed may be lower.
Q. How do I convert Gbps to Mbps?
Multiply by 1,000. For example, 2.5 Gbps = 2,500 Mbps = 312.5 MB/s. These network prefixes are decimal.
Q. Are MB/s and MiB/s the same?
No. 1 MB/s = 1,000,000 bytes per second, while 1 MiB/s = 1,048,576 bytes per second. Thus 1 MiB/s = 1.048576 MB/s.
Q. Why is my download slower than my connection speed?
First compare units: a connection in Mbps and a download in MB/s differ by a factor of eight. After conversion, the remaining difference may come from protocol overhead, congestion, wireless conditions, the remote server or storage limits.
Q. Does swapping units keep the same speed?
No. Swap units only keeps the number you entered and exchanges the source and destination units. It treats that number as a new input in the new source unit.

Sources and specifications

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