This converter turns megabits into bytes instantly, using the exact factor 1 megabit = 125000 bytes. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One million bits — how internet speeds are advertised. Eight bits; the addressable unit of computer memory.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
megabits- The amount you are converting, measured in megabits
125000- The exact number of bytes in one megabit
bytes- The converted result
How it works, step by step
- Enter the number of megabits you want to convert.
- The value is multiplied by 125000, the exact conversion factor.
- The result is displayed in bytes, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 megabits
Multiply 5 by 125000. That gives 625,000 bytes. A quick sanity check: one megabit is larger than one byte, so the number should get bigger — and it does.
Converting 72 megabits
72 × 125000 = 9,000,000 bytes. Working backwards, 9,000,000 ÷ 125000 returns 72 megabits, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many bytes are in one megabit?
Exactly 125000. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert megabits to bytes?
Bytes = megabits × 125000. To reverse it, divide instead: megabits = bytes ÷ 125000, which is the same as multiplying by 8e-06.
Is the megabit bigger than the byte?
Yes. One megabit equals 125000 bytes, so it is the larger unit.
Why does my answer differ slightly from other megabits to bytes converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a megabit?
One million bits — how internet speeds are advertised.
What is a byte?
Eight bits; the addressable unit of computer memory.
Megabits to bytes reference table
| Megabits | Bytes |
|---|---|
| 0.5 Mb | 62,500 B |
| 1 Mb | 125,000 B |
| 2 Mb | 250,000 B |
| 3 Mb | 375,000 B |
| 5 Mb | 625,000 B |
| 10 Mb | 1,250,000 B |
| 15 Mb | 1,875,000 B |
| 20 Mb | 2,500,000 B |
| 25 Mb | 3,125,000 B |
| 50 Mb | 6,250,000 B |
| 75 Mb | 9,375,000 B |
| 100 Mb | 12,500,000 B |
| 250 Mb | 31,250,000 B |
| 500 Mb | 62,500,000 B |
| 1000 Mb | 125,000,000 B |
Exact factor: 1 megabit = 125000 bytes. Values rounded for display.