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The Age Calculator Online is a free tool that instantly calculates your exact age in years, months, and days from your Date of Birth (DOB). It also shows your total days lived, your age in days, and a live next-birthday countdown. Use this calculator to answer common questions like “What is my age today?”, or “How old was I in 2018?”. Everything runs directly in your browser — no data uploaded, ensuring full privacy.
Calculate your exact age in years, months, days, and more
Using our DOB calculator is simple. Just follow these easy steps to find out your age.
1. Enter Your Birth Date: Use the date picker to select your date of birth.
2. Click "Calculate Age": Our tool will automatically use today's date to compute your chronological age.
3. Review Your Results: Your precise age calculation will be displayed in a clear, easy-to-read format.
Our tool does more than just tell you how many years old you are. It provides a detailed breakdown of your age in months, weeks, and days, offering a complete picture of your time since birth.
Understanding your age in months is crucial for tracking developmental milestones in children. For example, our calculator can show that 2 years is equivalent to 24 months. We also provide your age in weeks for even more granular tracking.
For a truly mind-blowing perspective, our tool can compute your age in hours and even your age in seconds. This level of detail showcases the incredible precision of our age calculation formula.
Our website offers more than just a standard date of birth calculator. We provide a suite of tools for all your time-calculation needs.
Need to know the duration between two events? Use our time duration calculator to find the exact number of years, months, and days between any two dates.
Planning for the future? Our tool can project your age at a specific date. Perfect for answering questions like, "How old will I be on my next birthday?" or "What will my age be when I retire?"
Some cultures celebrate unique milestones, like living for 10,000 days (approximately 27 years and 5 months). Our calculator can help you find these special dates, adding a layer of fun and meaning to age reckoning.
How does our Age Calculator work? It uses a precise algorithm based on the Gregorian calendar to ensure accuracy. The process involves subtracting your birth year from the year and then adjusting for months and days to provide your exact age.
A common question is, "How does an age calculator handle leap years?" Our algorithm is programmed to account for the extra day in February. This ensures that your age calculation remains perfectly accurate, even if you were born on February 29th. This is essential for a truly accurate age calculator.
Keep the “As of” date as today and enter your DOB. Press Calculate to see your current age in years, months and days.
The calculator shows a live countdown (in days) to your next birthday below the main result.
Change the “As of” field to a past date like
2018-01-01. The tool will show your exact age on
that date.
About 4,015 days on average (leap years vary). The tool’s “Total days lived” value gives your precise count.
Enter your DOB and optionally an “As of” date. You’ll get years, months, days, total days lived, and a next-birthday countdown.
Yes. Use the months+days portion from the detailed breakdown in the result.
Yes. In non-leap years, Feb 29 birthdays are observed on Feb 28 for next-birthday logic.
Yes, many users calculate age in years, months and days for school admissions and government/competitive exams.
Enter your date of birth (DOB) and set the “As of” field to a
future date like
2030-01-01. The calculator shows your exact age on
that day.
Yes. Along with years, months, and days, the tool also gives total days lived, which is converted into weeks, hours, and even minutes.
Yes. By entering two different dates, you can find the exact difference in years, months, and days—useful for siblings, spouses, or comparing events.
Yes. The calculator doubles as a birthday calculator—it shows your birth date, weekday of birth, and a live countdown to your next birthday.
Chronological age is the total time lived since your birth, expressed in years, months, and days. This tool calculates chronological age—not biological age.
No. All calculations run locally; nothing is uploaded.
Yes. After the first load, the tool works without internet.