rai to a(are)rai to ab(attobarn)rai to ac(acre)rai to ac [US Survey](acre)rai to am²(square attometre)rai to b(barn)rai to cb(centibarn)rai to circular milrai to cm²(square centimetre)rai to dab(decabarn)rai to dam²(square decametre)rai to db(decibarn)rai to dm²(square decimetre)rai to Eb(exabarn)rai to Em²(square exametre)rai to fb(femtobarn)rai to fm²(square femtometre)rai to ft²(square foot)rai to Gb(gigabarn)rai to Gm²(square gigametre)rai to ha(hectare)rai to hb(hectobarn)rai to hm²(square hectometre)rai to in²(square inch)rai to kb(kilobarn)rai to km²(square kilometre)rai to Mb(megabarn)rai to mb(millibarn)rai to mi²(square mile)rai to Mm²(square megametre)rai to mm²(square millimetre)rai to m²(square metre)rai to nb(nanobarn)rai to nm²(square nanometre)rai to Pb(petabarn)rai to pb(picobarn)rai to Pm²(square petametre)rai to pm²(square picometre)rai to roodrai to squarerai to square perchrai to Tb(terabarn)rai to Tm²(square terametre)rai to yb(yoctobarn)rai to Yb(yottabarn)rai to yd²(square yard)rai to ym²(square yoctometre)rai to Ym²(square yottametre)rai to zb(zeptobarn)rai to Zb(zettabarn)rai to zm²(square zeptometre)rai to Zm²(square zettametre)rai to µb(microbarn)rai to µm²(square micrometre)