Bits to Megabits
Type a value in either box to convert between bits and megabits. The factor is 1e-06.
| Bits | Megabits |
|---|---|
| 1 bit | 1e-06 Mb |
| 2 bit | 2e-06 Mb |
| 3 bit | 3e-06 Mb |
| 5 bit | 5e-06 Mb |
| 10 bit | 1e-05 Mb |
| 25 bit | 2.5e-05 Mb |
| 50 bit | 5e-05 Mb |
| 100 bit | 0.0001 Mb |
How to use
- Enter a value in the Bits field.
- The Megabits figure appears immediately — no button to press.
- Typing in the Megabits field converts back to Bits the same way.
- Use the reference table for the values that come up most often.
Bits to Megabits formula
The factor from bits to megabits is 1e-06.
Mb = bit × 1e-06
Why this factor: the bit and the megabit are both defined against the byte, so dividing one definition by the other gives 1e-06 directly. Both definitions are set out in full below.
To go the other way, divide by 1e-06 — or use the Megabits to Bits converter, which is the same calculation reversed.
Worked example
Start with 64 bit. Multiply by 1e-06 to get 6.4e-05 Mb.
64 bit × 1e-06 = 6.4e-05 Mb
The converter above does this for any value you type, in either direction.
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.
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.
Bits vs Megabits
The bit and the megabit 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 megabits are in a bit?
One bit equals 1e-06 megabits.
What is the formula to convert bits to megabits?
Multiply the number of bits by 1e-06. To reverse it, divide by 1e-06 instead.
How do I convert megabits back to bits?
Divide by 1e-06, which is the same as multiplying by 1000000.
How many megabits are in 10 bits?
10 bit works out to 1e-05 Mb.
Is there anything to watch out for with bits?
Lowercase 'b' is bits, uppercase 'B' is bytes. A 100 Mb/s connection delivers about 12.5 MB/s.
How is the bit defined?
One eighth of a byte. The name is a contraction of 'binary digit'.