Zakaah on grains and fruits

Question 7: What is the minimum possible Nisaab (the minimum amount on which Zakaah is due) on grains, rice and so on? How much of them should be given for a person who deserves Zakaah (obligatory charity)?

Answer: Nisaab of Zakaah on grains such as wheat, barley, corn, and rice is five Wasqs (1 Wasq = 60 Saa`s =130,320 kg), where a Saa` is equal to four Mudds (a dry measure of half bushel, 543 grams) according to the measuring of the Prophet (peace be upon him), and it is also equal to four hundred and… read more here.