Age Calculator Online — Calculate Age by Date of Birth
Find your exact age in years, months and days — plus totals in weeks, hours, minutes & seconds. Get your next birthday date & weekday with a live countdown. 100% private: everything runs in your browser.
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How to use Age Calculator
- Select your Date of Birth (optionally add time).
- Keep “Today” selected or choose a custom “As of” date.
- Click Calculate to see exact age & next birthday details.
- Use Date Difference to find the gap between any two dates.
What is an Age Calculator?
An Age Calculator is a free online tool to calculate age by date of birth with exact precision. It instantly shows years, months, days — plus totals in weeks, hours, minutes & seconds — and also gives your next birthday date, weekday and a live countdown. All calculations are browser-only for privacy.
Features of our Online Age Calculator
- Exact age in years, months, days + totals (weeks, hours, minutes & seconds).
- Next birthday date, weekday and live countdown.
- Zodiac sign based on your Date of Birth.
- Date Difference for any two dates.
- 100% private — nothing is uploaded, runs in your browser.
FAQ
Is this age calculator accurate?
Yes. It accounts for leap years and true month lengths. Times are computed in your local timezone for consistency.
Do you store my dates?
No. Everything runs in your browser; nothing is uploaded.
Can I calculate age with time?
Yes. Enable the “Time” checkbox next to Date of Birth to include hours and minutes.
Can I compare two dates?
Yes, use the Date Difference section to find the gap between any two dates.
🔗 Related Tools
Work out an exact age from any date of birth
Most of the time an approximate age is fine. Sometimes it is not. Competitive exam eligibility is decided on your age as on a specific cut-off date, often to the day, and a miscalculation can mean a rejected application after the fee has been paid.
This calculator gives the exact gap between two dates in years, months and days, handling the parts people get wrong by hand — leap years, months of unequal length, and the awkward cases where a birthday falls close to the cut-off.
You can calculate age as on today, or as on any date you choose, which is exactly what exam notifications require.
Who uses this most
- Exam eligibility — SSC, IBPS, RRB, UPSC and state PSC notifications set minimum and maximum age as on a specific cut-off date.
- Application forms — Fields that ask for age in years, months and days rather than just years.
- Legal and official documents — Where exact age must be stated precisely.
- School admissions — Institutions with an age cut-off as on a fixed date.
- Retirement and service calculations — Working out completed service or time remaining.
- Everyday curiosity — Knowing exactly how old someone is, down to the day.
How to use the age calculator
- Enter the date of birthUse the exact date as printed on the certificate or ID you will submit.
- Set the reference dateLeave it as today for current age, or enter the cut-off date the form specifies.
- Read the resultAge appears in years, months and days.
- Check against the requirementCompare with the minimum and maximum ages in the notification.
- Note it downEnter the same figures on the form so everything matches.
Always calculate against the cut-off date printed in the official notification, not today's date. Exam eligibility is assessed as on that date, and using the wrong reference is a common reason applications are rejected.
How age cut-off dates usually work
These are typical patterns. Always confirm against the current notification, since cut-off dates change between cycles.
| Situation | How age is assessed | What to watch |
|---|---|---|
| Competitive exams | As on a cut-off date stated in the notification | The cut-off is often months before the exam itself |
| Age relaxation categories | Upper limit extended for reserved categories | Relaxation is applied to the same cut-off date |
| School admission | As on 31 March or 1 April in many states | Rules vary considerably between states and boards |
| Government service | As on a date fixed in the recruitment rules | Sometimes differs from the application deadline |
Common problems and how to fix them
My age is different from what the form calculated
The reference dates almost certainly differ. Confirm the exact cut-off date in the notification and calculate against that.
I am just above the upper age limit
Check whether age relaxation applies to your category — most notifications list relaxations, and they are applied to the same cut-off date.
My documents show different dates of birth
Resolve this before applying. Use the date on the certificate the exam accepts as proof, and get the discrepancy corrected.
The leap year confused me
The calculator handles leap years automatically. For a 29 February birthday, non-leap years are generally treated as 1 March for age purposes.
I need age in completed years only
Take the years figure and ignore months and days — most forms asking for age in years mean completed years.
The result seems off by a day
Check whether you entered the dates in the format the field expects. Day and month are easy to transpose.
Getting your age right on an application
- Read the notification for the cut-off date before calculating anything.
- Use the date of birth exactly as printed on the certificate you will submit as proof.
- Check age relaxation rules for your category before assuming you are ineligible.
- Note whether the form wants completed years or years, months and days.
- If you are close to a limit, calculate carefully and keep a record of the figures you used.
- Confirm that every document you submit shows the same date of birth.
Your file never leaves your device
The calculation runs inside your browser, so no dates or personal details are transmitted or stored anywhere. This matters most when the document is personal — an Aadhaar or PAN scan, a bank statement, a salary slip, a medical report or a signed contract. With a server-based converter you are trusting an unknown company with that file. Here there is nothing to trust, because the file is never transmitted anywhere.
Related tools
Age Calculator — more questions
How do I calculate my age for a competitive exam?
Enter your date of birth and set the reference date to the cut-off date printed in the official notification, not today's date. Eligibility is assessed as on that cut-off.
Does it account for leap years?
Yes, leap years and months of unequal length are handled automatically.
Can I calculate age as on a past or future date?
Yes. Set any reference date you need, which is what exam eligibility calculations require.
What if I was born on 29 February?
For age calculation in non-leap years, 1 March is generally treated as the birthday. Check the specific rules if a legal deadline depends on it.
What is age relaxation?
Many Indian recruitment notifications extend the upper age limit for reserved categories, ex-servicemen and persons with disabilities. The relaxation applies to the same cut-off date.
Does the form want completed years or exact age?
Most forms asking for age in years mean completed years. Some ask for years, months and days, which is why all three are shown here.
Is my date of birth stored anywhere?
No. The calculation happens in your browser and nothing is transmitted.
Is it free to use?
Yes, with no sign-up and no limit.