Khums Calculator

Khums is one of the most important financial obligations in Islamic jurisprudence. Calculating it correctly requires knowing your annual surplus, understanding your marja's specific rulings, and accounting for any previously khums-paid balance. This app makes the entire process simple, accurate, and transparent.
📱 What the app does
Enter your income, expenses, and savings — the app instantly calculates your total Khums, Sahm al-Imam, and Sahm al-Sadat based on the rulings of your chosen marja.
⚖️ Marja-Aware Calculations
The app fully supports the rulings of:
- Sayyid Ali al-Sistani
- Sayyid Abul-Qasim al-Khoei
Differences between the two marjas are automatically applied — including the nuanced ruling on previously khums-paid balances that were spent before or after new income arrived.
📅 Three Calendar Systems
View and enter your Khums year date in the calendar of your choice:
- Gregorian
- Hijri (Islamic lunar)
- Persian (Solar Hijri / Shamsi)
The app displays all three calendars simultaneously so you always know where you stand.
🧮 Two Calculation Modes
- Full Mode — enter total income and total expenses to calculate your net surplus
- Savings Mode — enter your current savings directly if you already know your net amount
💰 Previous Balance Handling
If you carry a previously khums-paid balance into the new year, the app guides you through the correct ruling based on what happened to that balance:
- Kept intact — no offset (unanimous ruling)
- Spent before new income arrived — Sistani permits compensation; Khoei does not
- Spent after new income arrived — compensation permitted by both marjas
A clear on-screen note explains the applicable ruling every step of the way.
🌍 Multilingual
Fully available in:
- English
- العربية (Arabic)
- فارسی (Persian)
The app remembers your language preference and applies it on every launch.
✨ Designed with care
Clean, modern Material Design 3 interface with smooth animations, dark/light theme support, and a layout that works beautifully on any screen size.
*This app is a calculation aid. For personal religious guidance, always consult your marja or a qualified Islamic scholar.