Order: debts, bequest, inheritance
Funeral costs and debts come first, then a bequest of at most one third to a non-heir, then the rest is divided among the heirs.
Qur'an 4:11; Bukhari 2744 and Muslim 1628 (hadith of Sa'd ibn Abi Waqqas)Islamic inheritance (fara'id) calculator — Sunni schools
Enter the estate and the heirs. See each heir's share as a fraction, a percentage and in toman, who is blocked, and where 'awl and radd apply.
Market connection lost — showing the last available prices
The estate
After debts, funeral costs and a bequest of at most one third
School
Heirs (number)
Result
Please enter at least one heir.
⚠ Warning: this is a general, educational calculation — not a fatwa and not a court ruling. It does not cover complex situations (more distant heirs, an unborn child, a missing person, a hermaphrodite, a difference of religion, a bequest to an heir). Have the final division confirmed by a scholar you trust or by the court. In Iran, Article 12 of the Constitution gives followers of the Hanafi, Shafi'i, Maliki, Hanbali and Zaydi schools official status in personal-status matters (marriage, divorce, inheritance and wills) and related court cases.
Rules, shares and sources
Fixed shares (furud)
Husband 1/2, or 1/4 with a child; wife 1/4, or 1/8 with a child (shared among wives); one daughter 1/2, two or more 2/3; father and mother 1/6 each with a child; mother 1/3 when there is no child and not two siblings; one maternal sibling 1/6, two or more share 1/3 equally; a full or paternal sister 1/2, two or more 2/3; grandmother 1/6.
Qur'an 4:11, 4:12, 4:176; Abu Dawud 2894 (grandmother)Residuaries ('asaba)
After the fixed shares, what remains goes to the nearest male relative; a son and daughter share 2:1, and a sister with a daughter is a residuary.
Bukhari 6732; Muslim 1615Blocking (hajb)
A nearer heir excludes a farther one: a son excludes a son's son; the father excludes the grandfather and brothers; the mother excludes grandmothers; a child or the father excludes maternal siblings.
Consensus; al-Sirajiyya'Awl and radd
If the fixed shares add up to more than the whole, all are reduced in proportion ('awl). If something is left and there is no residuary, it returns to the fixed-share heirs other than the spouse (radd); the classical Shafi'is and Malikis gave it to the treasury but later scholars ruled for radd, which is applied here.
al-Sirajiyya; Ibn Qudama, al-Mughni'Umariyyatan
When the heirs are only a spouse, father and mother, the mother takes a third of what is left after the spouse (not a third of the whole); the view of 'Umar ibn al-Khattab and the majority.
al-Sirajiyya; al-MughniGrandfather with siblings
Hanafi (Abu Hanifa): the grandfather is like the father and blocks siblings. Shafi'i, Maliki, Hanbali (Zayd ibn Thabit): he shares with them and takes the best of three — sharing like a brother, a third of what is left, or a sixth of the whole; in the Akdariyya (husband, mother, grandfather, one sister) the case is divided in 27ths.
al-Sirajiyya; al-Mughni; al-RahbiyyaMushtaraka
Husband, mother (or grandmother), two maternal siblings and a full brother: Hanafis and Hanbalis exclude the full brother (nothing is left); Shafi'is and Malikis let him share the maternal siblings' third.
al-Sirajiyya; al-Mughni; al-RahbiyyaDhawu al-arham
With no fixed-share or residuary heir, the Hanafis and Hanbalis give the estate to dhawu al-arham. This tool only flags their existence; it does not compute the split among them.
al-Sirajiyya; al-MughniExample: an estate of 100 million toman; the deceased leaves a wife and two sons: the wife gets 1/8 = 12,500,000 toman; each son 43,750,000 toman.
FAQ
What share does a spouse inherit?
A husband gets 1/2, or 1/4 if the deceased left a child; a wife (or all wives together) gets 1/4, or 1/8 if there is a child. (Qur'an 4:12)
How much do a son and a daughter inherit?
A son takes twice a daughter's share (Qur'an 4:11). A lone daughter gets 1/2 and two or more get 2/3; the remainder goes to the nearest male heir or back to them by radd.
What are 'awl and radd?
'Awl: when the fixed shares add up to more than the whole, every share is reduced in proportion. Radd: when something is left and there is no residuary, it returns to the fixed-share heirs other than the spouse.