Obligatory giving, eligible recipients and a clearly scoped calculator.
Worship and responsibility
The Qur’an repeatedly joins prayer with giving. Verse 9:103 speaks of taking charity that purifies, while 2:177 places giving within a wider description of righteousness. Zakat should be distinguished from voluntary sadaqah and from other obligations such as khums or zakat al-fitr.
Who may receive it?
Qur’an 9:60 identifies categories for the distribution of obligatory charity: the poor, the needy, those administering it, those whose hearts are to be reconciled, freeing people from bondage, debtors, the cause of Allah and the traveller. Jurists discuss the scope and application of these categories. A category’s mention does not itself establish that a particular person or project meets its conditions.
Using the calculator
The website’s calculator estimates 2.5% for a user-entered eligible monetary base after the selected deductions, threshold and lunar-year condition. It is not a universal calculator for crops, livestock, every investment, or every school’s definition of zakatable property. Enter a current threshold appropriate to the method you follow; do not treat a fixed old currency value as permanent. The National Zakat Foundation source explains nisab in its own guidance framework.
Read the Qur’anic references
Sources and further reading
National Zakat Foundation — understanding nisab