data unit conversion 2

https://fair-wiki.win/index.php/How_to_Use_a_Digital_Storage_Calculator_for_Accurate_File_Size_Conversions

When you're moving a file from one device to another, that 5 MB photo might actually be 4,900 KB depending on how the system counts. Data unit conversion is the math behind translating megabytes to gigabytes, or bytes to kilobytes, often using either base-10 (1,000) or base-2 (1,024) calculations. It matters for storage capacity, internet speeds, and understanding file sizes properly.