Megabits to Bits
Convert megabits to bits instantly — one megabit is 1e+06 bits.
| Megabits | Bits |
|---|---|
| 1 Mb | 1000000 bit |
| 2 Mb | 2000000 bit |
| 3 Mb | 3000000 bit |
| 5 Mb | 5000000 bit |
| 10 Mb | 10000000 bit |
| 25 Mb | 25000000 bit |
| 50 Mb | 50000000 bit |
| 100 Mb | 100000000 bit |
How to use
- Enter a value in the Megabits field.
- The Bits figure appears immediately — no button to press.
- Typing in the Bits field converts back to Megabits the same way.
- Use the reference table for the values that come up most often.
Megabits to Bits formula
The factor from megabits to bits is 1000000.
bit = Mb × 1000000
Why this factor: the megabit and the bit are both defined against the byte, so dividing one definition by the other gives 1000000 directly. Both definitions are set out in full below.
To go the other way, divide by 1000000 — or use the Bits to Megabits converter, which is the same calculation reversed.
Worked example
Take 4 Mb and multiply by the factor 1000000: the result is 4000000 bit.
4 Mb × 1000000 = 4000000 bit
The converter above does this for any value you type, in either direction.
What is a megabit?
A megabit is one million bits — the unit internet speeds are advertised in.
Definition: Exactly 1,000,000 bits, so exactly 125,000 bytes.
Where it is used: Broadband speed tiers and video streaming bitrates, quoted as Mb/s or Mbps.
Worth knowing: Divide advertised megabits per second by 8 to get the megabytes per second a download will actually show.
What is a bit?
A bit is the smallest unit of digital information — a single binary digit, either 0 or 1.
Definition: One eighth of a byte. The name is a contraction of 'binary digit'.
Where it is used: Network and connection speeds, which are always quoted in bits per second.
Worth knowing: Lowercase 'b' is bits, uppercase 'B' is bytes. A 100 Mb/s connection delivers about 12.5 MB/s.
Megabits vs Bits
The megabit and the bit belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many bits are in a megabit?
One megabit equals 1000000 bits.
What is the formula to convert megabits to bits?
Multiply the number of megabits by 1000000. To reverse it, divide by 1000000 instead.
How do I convert bits back to megabits?
Divide by 1000000, which is the same as multiplying by 1e-06.
How many bits are in 10 megabits?
10 Mb works out to 10000000 bit.
Is there anything to watch out for with megabits?
Divide advertised megabits per second by 8 to get the megabytes per second a download will actually show.
How is the megabit defined?
Exactly 1,000,000 bits, so exactly 125,000 bytes.