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Data Transfer Rate Converter

Your numbers

Change any value to update the result.

Transfer rate

12.500000MB/s

Transfer rate: 12.500000 MB/s
Examples

A lowercase b is a bit, an uppercase B is a byte, and a byte holds eight bits. That single letter is a factor of 8: a 100 Mbit/s line tops out at 12.5 MB/s. Every prefix here is decimal, so 1 Gbit/s is exactly 1000 Mbit/s.

Most-used pairs

each is its own page
Mbit/s to MB/s1 Mbit/s = 0.125 MB/sMB/s to Mbit/s1 MB/s = 8 Mbit/sGbit/s to Mbit/s1 Gbit/s = 1000 Mbit/sMbit/s to kbit/s1 Mbit/s = 1000 kbit/sGB/s to Gbit/s1 GB/s = 8 Gbit/skB/s to kbit/s1 kB/s = 8 kbit/s

All 9 units

UnitSymbolIn bit/sTypical use
Bit per secondbit/s1The base unit of data rate
Kilobit per secondkbit/s1,000Dial-up lines, audio bitrates
Megabit per secondMbit/s1,000,000Broadband plans, Wi-Fi, streaming
Gigabit per secondGbit/s1,000,000,000Fibre lines and LAN ports
Terabit per secondTbit/s1,000,000,000,000Backbone and undersea cables
Byte per secondB/s8Small transfers in file tools
Kilobyte per secondkB/s8,000Slow downloads, sync tools
Megabyte per secondMB/s8,000,000Download managers, cloud sync
Gigabyte per secondGB/s8,000,000,000SSD and memory throughput

Megabit per second to Megabyte per second

prints complete
1 Mbit/s
0.125 MB/s
2 Mbit/s
0.25 MB/s
3 Mbit/s
0.375 MB/s
4 Mbit/s
0.5 MB/s
5 Mbit/s
0.625 MB/s
6 Mbit/s
0.75 MB/s
7 Mbit/s
0.875 MB/s
8 Mbit/s
1 MB/s
9 Mbit/s
1.125 MB/s
10 Mbit/s
1.25 MB/s
11 Mbit/s
1.375 MB/s
12 Mbit/s
1.5 MB/s
13 Mbit/s
1.625 MB/s
14 Mbit/s
1.75 MB/s
15 Mbit/s
1.875 MB/s
16 Mbit/s
2 MB/s

Other converters

Worked examples

Case 1

Rate to convert
100
From unit
Megabit per second (Mbit/s)
To unit
Megabyte per second (MB/s)

12.500000

Open with these values

Case 2

Rate to convert
1
From unit
Gigabit per second (Gbit/s)
To unit
Megabit per second (Mbit/s)

1,000.000000

Open with these values

Case 3

Rate to convert
1
From unit
Gigabyte per second (GB/s)
To unit
Gigabit per second (Gbit/s)

8.000000

Open with these values

How it's calculated

bits/s = value × from-factor; result = bits/s ÷ to-factor

  1. StepEnter the rate and pick the unit it is quoted in.Rate to convert=100
  2. StepPick the unit you want it in.
  3. StepEverything pivots through bits per second.
  4. ResultByte units carry a factor of 8 on the way through.12.500000

Reference table

UnitBits per secondCounts
bit/s1bits
kbit/s1,000bits
Mbit/s1,000,000bits
Gbit/s1,000,000,000bits
Tbit/s1,000,000,000,000bits
B/s8bytes
kB/s8,000bytes
MB/s8,000,000bytes
GB/s8,000,000,000bytes

Questions

Why does a 100 Mbit/s line only download at 12.5 MB/s?

Because one byte is 8 bits. Plans are sold in megabits per second, while browsers and file managers report megabytes per second, so you divide by 8: 100 ÷ 8 = 12.5. It is not a fault, it is the units.

What is the difference between Mbit/s and MB/s?

Mbit/s is megabits per second and MB/s is megabytes per second, and a byte holds 8 bits. So 1 MB/s equals 8 Mbit/s. The lowercase b means bit and the uppercase B means byte — one small letter, an eightfold difference.

Does this converter use 1000 or 1024 per step?

1000, the convention for network speeds: 1 kbit/s is 1000 bit/s and 1 Gbit/s is exactly 1000 Mbit/s. The 1024-based units belong to storage sizes, not to rates.

Where are these units actually used?

Broadband and Wi-Fi are advertised in Mbit/s or Gbit/s, download managers and cloud sync show MB/s, and streaming bitrates are quoted in Mbit/s. Converting tells you whether a 50 Mbit/s stream fits a 10 MB/s line — it does, because 10 MB/s is 80 Mbit/s.

Sources and last check

  1. physics.nist.gov

Information, not professional advice.