Islamic Inheritance Calculator
Select the heirs who survived the deceased and, optionally, the value of the estate. Mawarith Pro applies the fixed shares, blocking rules, residuary distribution, and the doctrines of ʿawl and radd — and explains each result.
Who survived the deceased?
Add only heirs who are alive and eligible. Non-Muslim heirs and those who caused the death do not inherit.
Distribution
Select the surviving heirs to see the Sharʿī distribution.
How to use this calculator
- Settle what comes first. Before any inheritance is divided, four rights are paid from the estate in order: funeral and burial costs, then outstanding debts (to people and to Allah, such as unpaid zakāh), then any valid bequest up to one-third of the remainder. Enter the net figure that is left for the heirs.
- Add the surviving heirs. Use the toggles for one-of-a-kind relatives (father, mother, husband) and the steppers to count children and siblings. Only include heirs who are alive at the moment of death.
- Read the shares and the reasoning. Each heir's fraction, percentage and — if you entered a value — exact amount appears on the right, along with the rule that produced it.
- Watch for the notes. If ʿawl or radd was applied, or if the case is one the scholars dispute, the calculator will tell you.
The four rights before inheritance
Funeral expenses → debts → bequest (≤ ⅓) → then the remainder is the inheritance (mīrāth) divided by the rules below. The calculator works on that final remainder.
The fixed shares at a glance
Six fractions appear throughout the Qurʾān's inheritance verses. These are the furūḍ — the fixed shares assigned to specific heirs under specific conditions.
| Share | Typical recipients (conditions apply) |
|---|---|
| 1/2 | Husband (no children); a single daughter; a single full sister |
| 1/4 | Husband (with children); wife (no children) |
| 1/8 | Wife (with children) |
| 2/3 | Two or more daughters; two or more full or paternal sisters |
| 1/3 | Mother (no children, fewer than two siblings); two or more maternal siblings |
| 1/6 | Father & mother (with children); grandmother; single maternal sibling; granddaughter completing a daughter's 2/3 |
The full conditions — and what happens when shares collide — are covered in the complete guide to Islamic inheritance.