Islamic Inheritance Calculator
Free Faraid tool — All 4 Madhabs — Transparent Calculation — PDF Report
Step 1: Estate & Settings
Estate Details & Settings
Your privacy is fully protected. All calculations happen entirely within your browser. No personal details, asset values or heir information are ever transmitted to or stored on our servers. This calculator is completely private and confidential.
This calculator shows exactly how much each surviving heir inherits under Islamic law (Faraid), after funeral costs, debts, Zakat and any valid Wasiyyah are deducted. Enter your estate value and heirs, choose your madhab, and get each person's fraction, percentage and monetary amount — with the Quranic or jurisprudential rule behind every share, plus a free PDF report.
How This Calculator Helps With Estate Planning
This calculator works for planning ahead and for administering an actual estate.
Before a death, it shows how your estate would split under Islamic law based on your family today — useful when you're deciding on your Wasiyyah, lifetime gifts and the rest of your estate planning.
After a death, it gives families, executors and advisers a transparent, documented breakdown of each heir's entitlement — reducing the guesswork and the disputes that come with it.
Download the PDF report and keep it with your estate documents.
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How Does the Islamic Inheritance Calculator Work?
The Islamic Inheritance Calculator applies the rules of Faraid (فرائض) exactly as laid down in Surah An-Nisa (Quran 4:11, 4:12 and 4:176). Every result follows the principles accepted by the four Sunni schools of Islamic jurisprudence — fixed shares (Zawi al-Furud), residuary heirs (Asaba), Awl (proportionate reduction) and Radd (proportionate return).
Unlike calculators that only show a final figure, this one gives you a full calculation trace. Each stage explains which rule applied, why it applied, and how every heir's final share was worked out — so families, executors and students of Islamic inheritance can see the reasoning, not just the result.
How is Islamic Inheritance Calculated Manually?
Every Islamic estate goes through the same five-step process, however complex the family structure.
| Step | What Happens | Rule / Formula |
|---|---|---|
| 1 | Calculate the Net Estate | Net = Total Assets − Funeral − Debts − Zakat − Wasiyyah (≤ 1/3) |
| 2 | Allocate Fixed Shares | Spouse, mother, father (with children), daughters, grandmothers, uterine siblings each receive prescribed fractions |
| 3 | Distribute the Remaining Estate | Sons, father (without children), grandfather, brothers take remainder in a 2:1 ratio — each son receives the share of two daughters |
| 4 | Apply Awl if Necessary | If Σ(Fard) > 1, scale all shares: ShareNew = ShareOld ÷ Σ(Fard) |
| 5 | Apply Radd if Necessary | If Σ(Assigned) < 1, remainder returns proportionally to eligible fixed-share heirs (Maliki: spouse included) |
What Are the Fixed Shares (Zawi al-Furud)?
Islamic inheritance is unique because several heirs receive shares fixed directly by the Quran, not decided by family or a court. Six fractions appear throughout Faraid: 1/2, 1/4, 1/8, 1/3, 2/3 and 1/6. Which one applies depends entirely on who survives — the presence or absence of children, parents or siblings changes the amount each heir receives.
| Heir | With Children | Without Children | Quranic Reference |
|---|---|---|---|
| Husband | 1/4 | 1/2 | Quran 4:12 |
| Wife (or Wives) | 1/8 (shared) | 1/4 (shared) | Quran 4:12 |
| Mother | 1/6 | 1/3 (or 1/6 with 2+ siblings) | Quran 4:11 |
| Father | 1/6 + residue | Pure Asaba (all residue) | Quran 4:11 |
| Single Daughter (no son) | 1/2 | Quran 4:11 | |
| 2+ Daughters (no son) | 2/3 (shared) | Quran 4:11 | |
| Uterine Sibling (1) | 1/6 | Quran 4:12 | |
| Uterine Siblings (2+) | 1/3 (shared) | Quran 4:12 | |
These shares represent the starting point of every Faraid calculation before any residuary distribution, Awl or Radd is considered.
Why Does the Wife Receive Less Than the Husband?
This is one of the most common questions about Faraid. On its own, a husband's share does look like double a wife's.
But Islamic inheritance doesn't exist apart from the rest of the Shariah financial system built around marriage. A husband carries the family's financial support for the whole marriage — the Mahr (dowry), housing, food, clothing and every essential living cost for his wife and children, regardless of what she's personally worth.
Her inheritance is hers alone. She has no religious obligation to spend any of it on the household, her husband or the children. She can save it, invest it, give it away or spend it however she chooses.
The two shares were never meant to be compared side by side. They're two halves of one system that balances rights against responsibilities.
What Happens When There Are No Residuary Heirs?
When fixed shares are distributed but no Asaba (residuary) heir exists to take the remainder, Radd applies — the leftover estate returns proportionally to the fixed-share heirs who already received something.
Spouse treatment differs by school:
- Hanafi, Shafi'i and Hanbali: the spouse does not participate in Radd.
- Maliki: the spouse shares in the returned balance with the other eligible heirs.
Get the madhab wrong here and the result changes — select yours correctly before you calculate.
Special Cases Recognised by the Calculator
Faraid includes a handful of exceptional cases scholars have debated for centuries. They come up rarely, but when they do, the school you follow changes the outcome.
The Mushtaraka (Al-Himariyyah) Case
This case arises when a spouse, the mother, two or more uterine siblings and full siblings survive together — and the fixed shares leave nothing over for the full siblings.
- Maliki and Shafi'i: the full siblings join the uterine siblings' 1/3 share and split it equally per head.
- Hanafi and Hanbali: the full siblings get nothing — there's no residue left for them to inherit.
Maternal and Paternal Grandmothers
Islamic inheritance treats the two grandmothers differently. The maternal grandmother is blocked only if the deceased's mother is alive. The paternal grandmother is blocked if either the mother or the father is alive. When both qualify, they split the prescribed 1/6 equally.
The Akdariyyah Case
One of Faraid's best-known exceptional cases: a surviving spouse, the mother, the paternal grandfather and one lone sister.
Maliki, Shafi'i and Hanbali: the sister is raised to her full 1/2 share, Awl reduces the totals, then the grandfather's and sister's portions combine and split two-to-one — working out to husband 9/27, mother 6/27, grandfather 8/27, sister 4/27.
Hanafi: the grandfather blocks the sister outright. She inherits nothing.
The calculator applies whichever rule matches the madhab you select.
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