Your privacy is our top priority. Royal Calc does not store, track, or share any personal data you enter into our everyday calculators. All calculations run directly in your browser. We don't use invasive tracking cookies. The only data we collect is anonymous usage statistics to help us improve our tools. You can use our Hijri calendar, discount calculator, age calculator, time calculator, and timezone converter with complete peace of mind.

Our Hijri calendar uses standard astronomical calculations to convert between Hijri and Gregorian dates. Results may vary by ±1 day depending on moon sighting traditions in your region. For religious events such as Ramadan, Eid, or Hajj, always confirm dates with your local Islamic authority.

The age calculator determines your exact age in years, months, days, hours, and even minutes based on your birth date and the current date. It also counts the total number of days you have lived — useful for milestones, forms, or curiosity.

Yes. The time calculator adds or subtracts days, hours, minutes, and seconds. It is useful for shift planning, tracking work hours, calculating durations between events, or managing schedules across different time zones.

Royal Calc lists these everyday calculators:

• ✅ Hijri Calendar – Hijri Calendar View Hijri and Gregorian dates side by side
• ✅ Discount Calculator – Discount Calculator Calculate sale prices and savings instantly
• ✅ Age Calculator – Age Calculator Calculate your exact age in years, months, days, and hours
• ✅ Time Calculator – Time Calculator Add and subtract time in days, hours, minutes, and seconds
• ✅ Timezone Converter – Timezone Converter Convert time across cities and countries worldwide