Data transfer rate converter
Type a speed, choose the units, and see the same rate in every common unit. It separates bits from bytes and decimal prefixes from binary ones, so 100 Mbps and 100 MiB/s are never confused.
Runs in your browser: nothing you enter is sent anywhere.
How to use it
- Type a number. A dot or a comma works as the decimal separator.
- Choose the unit you have and the unit you need. The ⇄ button swaps them.
- The table below shows the same value in all common units at once.
Conversion factors
Every unit is converted through the bit per second (bit/s).
| Unit |
Value |
| 1 byte per second |
8 bit/s |
| 1 kilobit/s |
1,000 bit/s |
| 1 megabit/s |
1,000,000 bit/s |
| 1 MB/s |
8,000,000 bit/s |
| 1 MiB/s |
8,388,608 bit/s |
| 1 gigabit/s |
10⁹ bit/s |
Worked example
A 500 Mbit/s plan has a ceiling of 500 / 8 = 62.5 MB/s. A drive that reads 550 MB/s is 550 × 8 = 4,400 Mbit/s = 4.4 Gbit/s.
Quick reference
- MB/s × 8 = Mbit/s
- Decimal prefixes (k, M, G) are 1,000; binary prefixes (Ki, Mi, Gi) are 1,024
- Network speeds are quoted in bits, file sizes in bytes
Frequently asked questions
How do I convert Mbps to MB/s?
Divide by 8, because one byte is 8 bits. A 100 Mbit/s connection moves at most 12.5 MB/s, before protocol overhead.
What is the difference between Mbps and MBps?
Lowercase b is bits, uppercase B is bytes. Internet plans are quoted in megabits per second; file-copy dialogs usually show megabytes per second.
What is the difference between MB/s and MiB/s?
MB/s uses 1,000,000 bytes, MiB/s uses 1,048,576 bytes (2²⁰). So 1 MiB/s is about 1.0486 MB/s.
Why is my real download slower than my plan?
Protocol headers, Wi-Fi conditions, server limits and shared lines take a share. This converter gives the arithmetic maximum only.