Pregnancy due date calculator

Count the days between two dates, in years, months and days, weeks, and working days (Mon–Fri or Sun–Thu). Free date difference calculator.

Work out X% of a number, what percent one number is of another, percentage change, and increases or decreases. Instant and free.

Calculate your exact age in years, months and days, plus total months, weeks and days and the days until your next birthday. Free.

Find the price after a discount and how much you save, including a second extra discount (e.g. 20% + 10%). Free and instant.

Add VAT to a net price or extract VAT from a total. Presets for Saudi Arabia 15%, UAE 5%, Bahrain 10%, Egypt 14% and more. Free.

Calculate your end-of-service award under the Saudi Labour Law (Art. 84–85) or UAE gratuity (Art. 51), including resignation rules. Free.