Megabits to Megabytes Converter (Mb to MB)
Convert megabits to megabytes instantly. 1 Mb = 0.125 MB. Includes the formula, a full conversion table and a calculator that works offline.
The formula
To convert megabits to megabytes, multiply by 0.125:
MB = Mb × 0.125Going the other way, divide instead — or multiply by 8, which is the same thing:
Mb = MB × 8Megabits to Megabytes conversion table
| Megabits | Megabytes |
|---|---|
| 1 Mb | 0.125 MB |
| 2 Mb | 0.25 MB |
| 3 Mb | 0.375 MB |
| 4 Mb | 0.5 MB |
| 5 Mb | 0.625 MB |
| 6 Mb | 0.75 MB |
| 7 Mb | 0.875 MB |
| 8 Mb | 1 MB |
| 9 Mb | 1.125 MB |
| 10 Mb | 1.25 MB |
| 15 Mb | 1.875 MB |
| 20 Mb | 2.5 MB |
| 25 Mb | 3.125 MB |
| 30 Mb | 3.75 MB |
| 40 Mb | 5 MB |
| 50 Mb | 6.25 MB |
| 75 Mb | 9.375 MB |
| 100 Mb | 12.5 MB |
| 250 Mb | 31.25 MB |
| 500 Mb | 62.5 MB |
| 1000 Mb | 125 MB |
Megabytes to Megabits
| Megabytes | Megabits |
|---|---|
| 1 MB | 8 Mb |
| 2 MB | 16 Mb |
| 3 MB | 24 Mb |
| 4 MB | 32 Mb |
| 5 MB | 40 Mb |
| 6 MB | 48 Mb |
| 7 MB | 56 Mb |
| 8 MB | 64 Mb |
| 9 MB | 72 Mb |
| 10 MB | 80 Mb |
What that actually looks like
A conversion factor is hard to judge on its own. These are quantities most people already have a feel for, converted for you:
- A home broadband line might be 100 Mb — 12.5 MB
Why both units are still in use
Digital storage has a genuine ambiguity: 1 GB can mean 1,024 MB (the binary sense your operating system uses) or 1,000 MB (the decimal sense drive manufacturers print on the box). This page uses the binary values, which is why a 1 TB drive shows up as roughly 931 GB once it is plugged in. Nothing is missing — the two sides are simply counting differently.
Mistakes worth avoiding
Do not mix bits and bytes. Broadband is sold in megabits per second and files are measured in megabytes, so a 100 Mb connection downloads at about 12.5 MB per second, not 100. The eight-to-one difference is why a download always looks slower than the advertised speed.
The other habit worth breaking is rounding too early. Convert first, round once at the end, and you avoid the drift that turns a small approximation into a visible error by the third calculation.
Doing it in your head
When you only need a rough answer, divide by 8 — which is exact. Ten megabits works out at roughly 1.25 megabytes that way, against 1.25 exactly. An estimate is enough for deciding whether something will fit or whether a figure sounds plausible. When the number has to be right — because you are buying, cooking or building to it — use the calculator and let it carry the decimals.
Common questions
How many megabytes are in one megabit?
One megabit equals 0.125 megabytes. The calculator above handles any value, including decimals and very large numbers, and updates as you type.
Is this an exact conversion?
Yes — this is an exact defined ratio, not an approximation. The table rounds for readability; the calculator does not.
Does this work offline?
Yes. The conversion runs in your browser with no network request, so it works on a plane, in a basement, or on a phone with no signal once the page has loaded.