1 megabytes to bytes
1,000,000 B
1 MB = 1,000,000 B.
bytes
1,000,000B
1 MB = 1,000,000 B
In short
How many bytes is 1 megabytes?
1 MB = 1,000,000 B. 1 megabyte = 1,000,000.000000 bytes, so the working is 1 × 1,000,000.000000 = 1,000,000.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 megabyte = 1,000,000.000000 bytes 1 × 1,000,000.000000 = 1,000,000
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (B) | Off by |
|---|---|---|
| Whole number | 1,000,000 | exact |
| 1 decimal | 1,000,000.0 | exact |
| 2 decimals | 1,000,000.00 | exact |
Round trip: take 1,000,000 B back the other way and you land on 1.0000 MB — a drift of 0.0000 MB. That gap is the rounding, not the conversion.
What 1 MB looks like
1 MB
One megabyte is 1,000,000 bytes. A mebibyte is 1,048,576, about 4.86 percent more.
Frequently asked questions
What is 1 megabytes in bytes?
1 megabytes is 1,000,000 bytes. 1 megabyte = 1,000,000.000000 bytes, so the working is 1 × 1,000,000.000000 = 1,000,000.
How accurate is 1,000,000 B?
Rounding to 1,000,000 B and converting straight back gives 1.0000 MB, a drift of 0.0000 MB from the 1 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
MB to Bytes Converter
Convert megabytes to bytes — one million per MB, unless the thing reporting it means 1,048,576.
Open the MB to bytes converter →