How the zakat calculator works
Zakat is worked out in four steps: add up what you own, take off what you owe, check the balance against the nisab, and pay 2.5% of it. The calculator follows the same four steps and shows every line, so you can check the arithmetic yourself or take it to a scholar.
Enter amounts in your own currency. The currency is guessed from your time zone and you can change it. Gold and silver go in by weight, in grams, tola or troy ounces, and the calculator prices them at today's rate. If your local jeweller quotes a different price, open Prices and method and type your own.
What counts towards zakat
Zakat is due on cash in every account and at home, gold and silver in any form, shares and funds, the zakatable part of a pension, crypto, business stock and cash, and money owed to you that you expect to get back. Things you bought for personal use, such as your home and car, are not counted, apart from gold, silver and cash. Livestock and farm produce follow their own rules and are not covered here; for those, ask a local imam.
Shares can be counted at full value, or with the National Zakat Foundation's shortcut for long-term holdings: 25% of the market value, then 2.5% of that. The shortcut stands in for the companies' own zakatable assets, which are hard to look up.
Guides: gold, silver, cash, savings and crypto, shares and funds, pensions, business assets. Today's threshold: nisab today. How we work: sources and method.
The nisab: gold or silver
The nisab is the minimum wealth on which zakat is due. It was set as 20 gold dinars or 200 silver dirhams, and today it is measured by the price of that weight of gold or silver. Because silver is far cheaper, the silver nisab is much lower, so more people owe zakat under it. Zaytuna College calls silver the safer choice and treats both as valid.
Trusted bodies convert the old weights slightly differently. The National Zakat Foundation (UK) uses 87.48 g of gold or 612.36 g of silver, Zaytuna College (US) about 85 g or 595 g, and Diyanet (Turkey) 80.18 g or 561.2 g as cited from its handbook. The calculator picks one from your currency and names it under the result. You can switch it.
What you can take off
Following the National Zakat Foundation, you may deduct debts that must be paid within 12 months, up to 12 months of instalments on longer debts such as a mortgage or car finance, overdue bills, and money you owe for things already bought. You cannot deduct bills that are not yet due, debts not payable in the next year, or interest.
When to pay
Zakat is due once your wealth has stayed at or above the nisab for a full lunar year. The date you first reached the nisab becomes your zakat anniversary. Many people choose to pay in Ramadan, and paying early is allowed, but the amount should still reflect your wealth on your zakat date. In the Hanafi school, zakat is owed if you hold the nisab at the start and end of the year even if it dipped in between.
Your figures stay with you
There is no sign-up, no contact form and no donation request. The calculation runs in your browser, your entries are saved only on this device, and you can save them to a file for next year. The only data the page fetches is the public gold, silver and currency prices.
This calculator gives an estimate based on the published guidance named above. It is not a fatwa. For your own situation, ask a scholar you trust.