Bits per Second
Internet and network connection speeds are commonly advertised in bits per second, such as Mbps or Gbps. The lowercase “b” represents bits.
Understanding transfer speeds
What Is a Data Transfer Rate?
A data transfer rate measures how much digital data moves between devices or systems during a specific period, normally one second.
Bytes per Second
File transfers and storage applications often show speeds in bytes per second, such as MB/s. The uppercase “B” represents bytes.
Simple process
How to Use the Data Transfer Rate Converter
Your converted value and equivalent speed figures update automatically whenever an input changes.
Enter the transfer rate
Type your internet, download, upload or storage transfer speed into the first field.
Select the original unit
Choose the current unit, such as Mbps, Gbps, MB/s or MiB/s.
Choose the output unit
Select the required destination unit to see the converted result instantly.
Conversion formulas
Data Transfer Rate Formulas
These common formulas help explain the difference between bit-based and byte-based speeds.
Mbps to MB/s
MB/s = Mbps ÷ 8
Example: 100 Mbps divided by 8 equals 12.5 MB/s.
MB/s to Mbps
Mbps = MB/s × 8
Example: 25 MB/s multiplied by 8 equals 200 Mbps.
Gbps to MB/s
MB/s = Gbps × 125
One gigabit per second equals 125 megabytes per second.
Transfer Time
Time = File Size in Bits ÷ Bits per Second
Real transfer time can be longer because of network overhead and connection conditions.
Common values
Common Mbps to MB/s Conversions
Divide megabits per second by eight to estimate the equivalent maximum megabytes per second.
| Internet Speed | Megabytes per Second | Approximate 1 GB Transfer |
|---|---|---|
| 10 Mbps | 1.25 MB/s | 13 minutes 20 seconds |
| 25 Mbps | 3.125 MB/s | 5 minutes 20 seconds |
| 50 Mbps | 6.25 MB/s | 2 minutes 40 seconds |
| 100 Mbps | 12.5 MB/s | 1 minute 20 seconds |
| 250 Mbps | 31.25 MB/s | 32 seconds |
| 500 Mbps | 62.5 MB/s | 16 seconds |
| 1 Gbps | 125 MB/s | 8 seconds |
Decimal and binary units
MB/s vs. MiB/s
Decimal and binary prefixes use different multipliers, so their numerical values are not identical.
Decimal Units
KB, MB and GB are based on powers of 1,000. One megabyte equals 1,000,000 bytes. Network and storage marketing commonly uses decimal units.
Binary Units
KiB, MiB and GiB are based on powers of 1,024. One mebibyte equals 1,048,576 bytes.
Helpful answers
Frequently Asked Questions
Mbps means megabits per second, while MB/s means megabytes per second. One byte contains eight bits, so 1 MB/s equals 8 Mbps.
Divide the Mbps value by eight. For example, 200 Mbps divided by eight equals 25 MB/s.
One gigabit per second equals 125 megabytes per second under the decimal unit system.
MB/s uses decimal units based on powers of 1,000, while MiB/s uses binary units based on powers of 1,024.
Actual speed may be reduced by protocol overhead, Wi-Fi signal quality, congestion, server limits, background traffic and device performance.
Yes. Upload and download rates use the same transfer-rate units, so the converter works for either direction.
No. The estimator provides an approximation. Actual time depends on connection stability, overhead, latency, server speed and other technical factors.
Speed note:
Converted values show mathematical equivalence. Real-world
download and upload speeds are normally lower because of
network overhead, congestion, signal quality and hardware
limitations.