Age Calculator
Calculate your exact age in years, months and days. You can also see your total days, weeks and your next birthday.
Discover your exact age
Enter your date of birth and we'll calculate your age down to the exact day.
02 Click calculate
About the Age Calculator
Use our free online Age Calculator to find your exact age in years, months, days, weeks and total days. Simply enter your date of birth and get accurate results instantly. Perfect for birthdays, official forms, or just curiosity.
How to Use the Age Calculator
- Enter your date of birth in the input field.
- Optionally select a different “Calculate age as of” date (default is today).
- Click the Calculate my age button.
- Instantly see your exact age in years, months, days, weeks and total days lived.
Why Use Our Free Age Calculator?
- 100% free and no registration required
- Shows exact age down to the day
- Works offline in your browser (privacy-friendly)
- Mobile-friendly and fast
- Useful for visas, job applications, school forms and more
Frequently Asked Questions
How accurate is this age calculator?
It calculates exact age based on the Gregorian calendar and accounts for leap years, so results are highly accurate.
Can I calculate age for a future or past date?
Yes. Just change the “Calculate age as of” date to any past or future date.
Does it work on mobile?
Yes, the age calculator is fully responsive and works perfectly on phones and tablets.
Is my date of birth stored?
No. All calculations happen in your browser. We do not store or send your data anywhere.
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How Old Am I? Find Your Exact Age in Years, Months & Days
Have you ever asked yourself "How old am I?" and wanted more than just a simple number? Our free age calculator gives you the exact answer in years, months, and days. Whether you're curious about your precise age down to the day or need to calculate age for official purposes, this tool provides instant, accurate results.
How to Calculate Your Exact Age
Calculating your age is simple when you break it down into years, months, and days. Here's the formula:
Age = Current Date - Date of Birth
Step 1: Subtract the birth year from the current year
Step 2: Subtract the birth month from the current month
Step 3: Subtract the birth day from the current day
If any value is negative, borrow from the next higher unit.
Example: How Old Am I?
Example: If you were born on March 15, 1995 and today is September 2, 2026:
- Years: 2026 - 1995 = 31 years
- Months: September (9) - March (3) = 6 months
- Days: 2 - 15 = -13 (borrow from months)
- Result: You are 31 years, 5 months, and 17 days old
Why Knowing Your Exact Age Matters
Understanding your exact age in years, months, and days can be important for many reasons:
- Legal documents: Many official forms require exact age
- Health tracking: Medical professionals often need precise age
- Personal milestones: Track exactly how long you've been alive
- Retirement planning: Calculate exactly when you'll reach retirement age
- School and education: Age requirements for enrollment
Frequently Asked Questions About Age Calculation
How do I calculate my age manually?
Subtract your birth year from the current year. Then adjust for months and days. If the current date is earlier in the year than your birthday, subtract one year from the total.
What if I don't know my exact birth time?
Don't worry! Our age calculator only needs your date of birth. The time of birth is not required for calculating age in years, months, and days.
How is age calculated for legal purposes?
Most legal purposes consider someone a year older on their birthday. Some specific applications may use different methods, but the standard is age in completed years from the date of birth.