Islamic
Islamic calculator guides, tutorials and formula breakdowns from the CalcaTools editorial team.
Islamic Inheritance Shares (Faraid) — A Worked Example for Beginners
How Islamic inheritance (faraid) works: fixed shares, the 2:1 rule, debts and bequests settled first — with a fully worked Rs 12 million example explained.
How to Purify Haram Income — A Calculation Walkthrough
Earned interest or mixed income? Learn how to calculate what to purify, where to give it, and what not to count as zakat — with a fully worked example.
Zakat on Gold Jewelry vs Investment Gold — What’s the Difference?
Gold jewelry or gold bars — the zakat rules differ. Compare the scholarly views, purity math, and two fully worked examples with October 2026 prices.
How to Calculate Zakat on Cash Savings: A Step-by-Step Guide
Zakat on cash savings explained step by step: which balances count, the nisab check, two worked examples with real numbers, and common mistakes to avoid.
Zakat on Stocks and Mutual Funds: A Worked Example
How to calculate zakat on stocks and mutual funds: value shares at market price, handle dividends, purify impure income, and run the 2.5% calculation.
How to Calculate Zakat on Rental Property Income
The short answer Zakat on rental income is 2.5% of the net rent you still have after one lunar year (hawl). You only pay if your total wealth meets the…
What Is Khums and How to Calculate It (Shia Guide)
Overview of khums as an annual 20% due on yearly surplus after expenses, detailing what it applies to, how the khums year functions, and a worked example.
Zakat on Crypto: How to Calculate It on Bitcoin & Coins
Guide to zakat on crypto: calculate 2.5% of market value on your zakat date, treatment for staking, and a worked example.
Zakat on Stocks: How to Calculate It (2026)
Explains zakat on stocks (2026): 2.5% of zakatable value after a lunar year, covering trading vs long-term shares and dividends.
Islamic Inheritance (Faraid): How Heirs’ Shares Are…
Islamic inheritance (Faraid) explained: fixed Quranic shares, order of distribution, spouse/parent/child main shares, the 2:1 rule and a worked example.