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What is the Islamic Inheritance Calculator?

Inheritance distribution in Islam, known as Faraid, is the science that governs the distribution of a deceased person's estate to entitled heirs based on the Qur'an and Sunnah. Islamic inheritance law has very detailed and just rules, ensuring that every family member receives their right according to their relationship and gender. Kalkulab's Inheritance Calculator is a digital solution to help calculate estate distribution automatically and accurately. This tool is very useful for families who want to distribute inheritance transparently and according to Islamic law, thus avoiding disputes and family conflicts that often arise from unclear distribution. Under Faraid law, heirs consist of Dzawil Furud (fixed-share heirs)...

Basic Principles of Inheritance Distribution (Faraid)

Heir's Share = Net Estate × Portion (1/2, 1/4, 1/8, 1/3, 1/6, 2/3, or Ashabah)

Variables:

  • Net EstateTotal Net Assets
    Assets after debts and bequests(e.g.: $500,000)
    💡 Base for inheritance calculation
  • Dzawil FurudFixed-Share Heirs
    Wife, Husband, Mother, Father, Daughter(e.g.: Wife gets 1/8)
    💡 Calculate fixed portions
  • AshabahResiduary Heirs
    Son as residuary heir(e.g.: Remainder after dzawil furud)
    💡 Calculate remaining estate
  • HajbExclusion
    Prevents certain inheritance rights(e.g.: Mother gets 1/6 if there are children)
    💡 Check inheritance barriers

Categories:

Wife1/8 (with children) or 1/4 (without children)
Husband1/4 (with children) or 1/2 (without children)
SonAshabah (residue, 2x daughter's share)
Daughter1/2 (one daughter) or 2/3 (two or more daughters)
Mother1/6 (with children) or 1/3 (without children)
Father1/6 (with children) or Ashabah (without children)

How to Use the Inheritance Calculator

Enter the data of surviving heirs and total estate, and the system will automatically calculate according to Faraid law.

  1. 1

    Enter Total Estate

    Enter the total value of the deceased's estate after deducting debts and funeral expenses.

  2. 2

    Deduct Bequest

    Enter the bequest value (maximum 1/3 of the estate according to Islamic law); the remainder will be distributed.

  3. 3

    Select Heirs

    Check the surviving heirs: husband/wife, children, parents, siblings, etc.

  4. 4

    View Result

    The system will display the inheritance distribution complete with amounts for each heir.

💡 Tip:

  • •Ensure the heirs data is accurate and reflects the current family situation.
  • •A bequest (wasiat) cannot exceed 1/3 of the total estate according to Islamic law.
  • •Consult the result with Islamic authorities for final confirmation.

Examples

Example 1: Male Deceased, Leaving Wife and 2 Children

Problem:

Mr. Budi passed away, leaving an estate of $360,000. Heirs: Wife, 1 son, 1 daughter. How is the distribution?

Solution:
  1. 1.Wife gets 1/8 = 1/8 × $360,000 = $45,000
  2. 2.Remaining estate = $360,000 - $45,000 = $315,000
  3. 3.Remainder becomes Ashabah for the children
  4. 4.Son : Daughter = 2 : 1
  5. 5.Total parts = 2 + 1 = 3
  6. 6.Son = 2/3 × $315,000 = $210,000
  7. 7.Daughter = 1/3 × $315,000 = $105,000
Result:Wife: $45,000, Son: $210,000, Daughter: $105,000

The estate is fully distributed, with the son receiving twice the daughter's share from the remainder after the wife's portion.

Example 2: Female Deceased, Leaving Husband and Parents

Problem:

Mrs. Ani passed away, leaving an estate of $240,000. Heirs: Husband, Father, Mother. How is the distribution?

Solution:
  1. 1.Husband gets 1/4 = 1/4 × $240,000 = $60,000
  2. 2.Father gets 1/6 = 1/6 × $240,000 = $40,000
  3. 3.Mother gets 1/6 = 1/6 × $240,000 = $40,000
  4. 4.Total distributed = $60,000 + $40,000 + $40,000 = $140,000
  5. 5.Remainder = $240,000 - $140,000 = $100,000
  6. 6.Remainder (Radd) distributed proportionally among existing heirs
Result:Husband: $60,000, Father: $40,000, Mother: $40,000, + Remainder $100,000 (Radd)

In this case, Radd (return of surplus) occurs because all heirs are Dzawil Furud and there is no Ashabah.

Frequently Asked Questions

What is Islamic inheritance law (Faraid) and what is its legal basis?
Faraid is the science of inheritance distribution in Islam regulated in the Qur'an Surah An-Nisa (4:11-12, 176) and the hadith of the Prophet SAW. This law establishes fixed portions for specific heirs and gives the remaining estate to the nearest male relatives (Ashabah).
Who are the main heirs in Islam?
The main heirs (Dzawil Furud) include: husband (1/4 or 1/2), wife (1/8 or 1/4), father (1/6 or Ashabah), mother (1/6 or 1/3), daughter (1/2 or 2/3), full sister, and others. The primary Ashabah (residuary heir) is the son.
What is Hajb (exclusion) in inheritance distribution?
Hajb is a condition where an heir's share is reduced or completely blocked due to the presence of a closer heir. Example: The presence of children reduces the father's portion from 1/6 to Ashabah, and eliminates the rights of siblings.
What is 'Aul and when does it occur?
'Aul is a condition where the total shares of heirs exceed 1 (100%), so all portions must be reduced proportionally. Example: Husband (1/2) + Mother (1/6) + Father (1/6) + 2 daughters (2/3) = 1/2 + 1/6 + 1/6 + 2/3 = 1.5 (exceeds 1). All portions are then reduced proportionally.
What is Radd (return of surplus) and when does it occur?
Radd occurs when the total shares of Dzawil Furud are less than 1 (there is remaining estate) and there is no Ashabah. The remaining estate is returned (Radd) to the Dzawil Furud heirs proportionally. The Shafi'i school of thought follows this Radd principle.

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References