A megabyte is bytes.

1,048,576 bytes

Explanation:

1 MB = 1048576 bytes

This is how the conversion works;

1 MB = 1024 kilo bytes

1 KB = 1024 bytes

1 MB = 1024 * 1024 = 1048576

So, that's how it work it is not 1000 as many believe it's 1024. So the conversion is done as written above. Many people confuse it that 1 MB is equal to 1000 KB which is not true. it is equal to 1024 KB