Unit Conversion in BI 7.0

Hi i want to display the units in US standards in initial view of report and allow <b>users to convert in local units if they want.</b>

A. I find that data is comingfor "factory area" field in cube in various units such as FT(Feet), MT (Meters), ST, IN. as entered in ECC

Please get me some help to write the <b>ABAP code to convert the units in US standard units or tell me some functionality at report level to convert the units so that report display all data for "factory area" in one unit</b>

Thanks

Regards

Poonam Roy