how do you calculate zakat 
muslims should take inventory of their possessions and wealth once they reach nisab or the threshold which is the value of 87 48 grams of gold or 612 36 grams of silver they must pay zakat the total amount to be paid is 2 5 or 1 40 of their total savings and wealth muslims can use any number of zakat calculators which are available online to determine their obligations 