Land unit converter

EXACT Tamil Nadu land unit conversion (never do this arithmetic yourself). Area units: square_feet, ground, acre, cent, square_meter, veli, maa, kaani, kuli, are, square_yard, guntha, kuncham, hectare, cawnie. Length units: feet, meter, yard, kol, muzham, centimeter. Pass amount + from unit; omit "to" for a full equivalents table. Use for "how many cents in a ground", "2.5 acres in sq.ft", "1 veli", "kuzhi to sq.ft", "muzham to feet". Set mode "rate" when the amount is a PRICE PER UNIT rather than an extent: "3,000 rupees per square foot in rupees per cent", "1.2 crore per ground per square foot", "land rate per acre to per square metre". A rate converts the opposite way to an extent, so never do it by converting the units yourself; the answer comes back under rate / rate_equivalents and is in whatever currency the amount was. Free.