Five straight-to-the-point tools for expats, employees, and students in the Kingdom — overtime, leave salary, KFUPM GPA, Hijri dates, and VAT. Every result shows its formula, not just a number.
Regular and holiday overtime pay from your basic monthly salary, per Article 107.
hourly = salary ÷ 30 ÷ 8 Open calculator TOOL · 02Leave salary from your monthly wage and service length, per Article 109.
leave pay = salary ÷ 30 × days Open calculator TOOL · 03Semester and cumulative GPA on KFUPM's official 4.00 scale — where a plain A is 3.75.
GPA = Σ(points×credits) ÷ Σcredits Open calculator TOOL · 04Convert any date between the Islamic and Gregorian calendars, either direction.
tabular Islamic calendar Open calculator TOOL · 05Add or extract Saudi Arabia's 15% VAT on any amount, per ZATCA.
VAT = amount × 0.15 Open calculatorGold zakat, salary, and end-of-service calculators are next in line.
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