Age Calculator

Free online age calculator: find your exact age in years, months and days

This age calculator tells you exactly how old you are, not just in whole years but in months, days, hours, minutes and live seconds. It also shows your next birthday countdown, your zodiac sign, your Hijri birth date, your age on other planets and a chart of your life in weeks. A second tool on the page, the age difference calculator, compares any two dates of birth. Both are free, need no sign-up and work on phones, tablets and computers.

How to use the age calculator

1. Pick your date of birth in the first box.
2. Leave "Age on date" as today, or choose another date to see your age at that moment, such as a form deadline or a future birthday.
3. Press Calculate age. Your result appears instantly and updates whenever you change a date.
4. Use the buttons below the report to save it as a PDF, PNG, JPG or text file, copy it, print it or share it on WhatsApp.

How age is calculated

The calculator subtracts your date of birth from the chosen date, working in this order: years, then months, then days. If the day of the month is smaller than your birth day, it borrows the length of the previous month. If the month is smaller, it borrows one year of twelve months. Because it uses real calendar month lengths, February, 30-day months and leap years are all handled correctly.

Worked example. Born 15 March 1998, checked on 12 October 2026. From 15 March 1998 to 15 September 2026 is 28 years and 6 months. From 15 September to 12 October is 27 more days. The age is 28 years, 6 months and 27 days.

People born on 29 February have a birthday only in leap years. This tool shows their birthday on 1 March in other years, which is the most common legal and practical convention.

Age difference calculator

The age difference calculator compares two dates of birth and shows the gap in years, months and days, plus the same gap as total months, weeks, days and hours. It also states who is older. It is handy for siblings, couples, friends, classmates, cousins and colleagues, or for checking the gap between a parent and a child.

Worked example. Person A was born 10 January 1990 and person B on 25 April 1993. From 10 January 1990 to 10 April 1993 is 3 years and 3 months, plus 15 days to reach 25 April. The difference is 3 years, 3 months and 15 days, and person A is older.

The first date of birth is filled in for you after you calculate your own age, so you only need to enter the second one.

When you need your exact age

• Official forms: ID card, passport, visa and driving licence applications often ask for age in years, months and days.
• Admissions and exams: schools, colleges and entrance tests set minimum and maximum age limits on a specific cut-off date.
• Jobs and recruitment: many public and private positions require you to be within an age range on the closing date.
• Retirement and insurance: pension age, premiums and policy eligibility depend on your exact age.
• Sports and competitions: age categories are decided by age on a set date.
• Health and parenting: a baby's age in weeks and months helps track growth, vaccines and milestones.
• Fun and curiosity: find your 10,000th day, your age on Mars, or how many days remain until your birthday.

For a deadline, set "Age on date" to the cut-off date. The result shows your age on that day, even if it is in the future.

What this tool shows

• Exact age in years, months and days, and totals in months, weeks, days and hours.
• A live counter that ticks every second when the date is today.
• A progress ring and countdown to your next birthday, plus your next 10 birthdays with weekday and days left.
• Birth weekday, western and Chinese zodiac, birthstone, birth flower, generation and season of birth.
• Your Hijri (Islamic) birth date based on the Umm al-Qura calendar.
• Your age on Mercury, Venus, Mars, Jupiter and Saturn, based on each planet's orbit.
• Rough estimates of heartbeats, breaths and years asleep.
• A life-in-weeks chart, where every square is one week and every row is one year up to age 90.

Frequently asked questions

Can I find my age on a past or future date? Yes. Change "Age on date" to any date after your birth.

Why does my age in months differ from years times twelve? The months figure includes the extra months since your last birthday, so it equals completed years times twelve plus those months.

What is Hijri age? It follows the Islamic lunar calendar, which has about 354 days a year. The Hijri date shown is your birth date converted to that calendar.

Are the planet ages accurate? They divide your age in days by each planet's orbital period in Earth days, so they are accurate for fun and education.

Are heartbeats and breaths exact? No. They assume about 72 beats and 16 breaths per minute and are only estimates.

Does the tool work offline? The calculations run in your browser. Downloading PDF or image reports needs the page's helper libraries to have loaded.

Privacy and accuracy

Your dates are processed only in your browser. They are not sent to a server, saved in an account or shared with anyone. Results use your device's date and time zone, so a different device clock can change the result near midnight. This tool is for general information; for legal, medical or official purposes, confirm your age against your official documents.

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مفت آن لائن عمر کیلکولیٹر: سال، مہینے اور دن میں درست عمر