Calculators

Free online calculators

13 calculators and converters for Saudi rules, loans, UK take-home pay, Hijri dates and ages, percentages, match times and university grades. Each one runs in your browser and comes with a guide that explains the rules behind the numbers and links to its sources.

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13 of 13 calculators

• Saudi & Gulf
• Loans and savings
• Dates and match times
• Students
• Maths

Saudi & Gulf (4)

• VAT Calculator (Saudi 15%)Add or remove VAT in one click. Preset for Saudi Arabia's 15% VAT, plus UAE, Oman and Bahrain rates or any custom sales tax rate.
• End of Service Calculator (Saudi Arabia)Estimate your Saudi end-of-service award: half a month's wage per year for 5 years, a full month after, with resignation rules.
• Zakat CalculatorCalculate zakat at 2.5% on cash, gold, silver and trade goods. Enter today's gold and silver price per gram to check the nisab.
• Islamic Inheritance Calculator (Faraid)Islamic inheritance (faraid/mirath) calculator: fixed shares, residuaries, blocking, 'awl and radd. Shows each heir's fraction and amount.

Loans and savings (4)

• Loan EMI CalculatorFree loan EMI calculator: enter amount, interest rate and term to get your monthly instalment, total interest and total repayment.
• Mortgage CalculatorEstimate your monthly mortgage payment from home price, down payment, rate and term, with optional property tax and insurance.
• Compound Interest CalculatorSee how savings grow with compound interest. Add a starting amount, monthly deposits, rate, years and compounding frequency.
• UK Salary After Tax CalculatorWork out UK take-home pay for 2026/27: Income Tax (incl. Scotland), National Insurance, student loan and pension, per year, month and week.

Dates and match times (3)

• Hijri to Gregorian Date ConverterConvert dates between the Hijri Umm al-Qura calendar used in Saudi Arabia and the Gregorian calendar, in both directions.
• Match Kickoff Time ConverterConvert a football match kickoff time to your local time and to major cities worldwide, with daylight saving handled automatically.
• Age CalculatorFind your exact age in years, months and days, in Gregorian and Hijri (Umm al-Qura) years. Enter a birth date in either calendar.

Students (1)

• GPA CalculatorCalculate your semester GPA on the US 4.0 scale or the 5.0 scale used by many Saudi universities, weighted by credit hours.

Maths (1)

• Percentage CalculatorFind X% of a number, what percent one number is of another, percentage change, add or remove a percentage, and work back to the original.

Calculators for money, zakat and inheritance give information only and are not financial, legal or religious advice. Check important results with the official body or a qualified adviser.

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