What is Age Calculator?
Age Calculator works out your exact age in years, months and days from your date of birth. It also shows how many total months, weeks, days and hours you’ve lived, counts down to your next birthday, and tells you the weekday you were born on and your zodiac sign.
You can change the “age on” date to find someone’s age on any past or future date — handy for exam, job and visa eligibility rules that require a minimum or maximum age on a specific cut-off date.
How to use Age Calculator
Get it done in 4 simple steps — no installation or account needed.
- Enter the date of birth.
- Leave “Age on” as today, or set a different date such as an exam cut-off.
- See the exact age instantly, along with the total days, weeks and hours.
- Scroll to see the next birthday countdown, weekday of birth and zodiac sign.
How Age Calculator calculates results
- We count the number of whole calendar months between your date of birth and the chosen date, then the remaining days.
- Month lengths and leap years follow the real calendar. When the birth day doesn’t exist in a shorter month (e.g. the 31st), the month is counted as complete on that month’s last day.
- Total days are the exact number of calendar days between the two dates; total hours are total days × 24.
- For legal or official purposes, check the rule your institution uses — some count age as of the day before the birthday.
Who needs Age Calculator?
From students to professionals, here’s who gets the most out of Age Calculator — and why.
Exam & job applicants
Check age eligibility on a specific cut-off date.
HR & admissions staff
Verify ages for recruitment or school admissions.
Parents
Track a child’s exact age in months and days.
Anyone curious
Find out how many days old you are or plan a milestone celebration.
Is Age Calculator safe to use?
Yes. Age Calculator runs entirely in your web browser using JavaScript. Your files and data are processed on your own device and are never uploaded to AppsOcean or any third-party server. There’s nothing to install, no account to create, and it’s completely free.Read our privacy policy.
Age Calculator — frequently asked questions
How is age calculated in years, months and days?
We count whole calendar months from your birth date to the chosen date, then the remaining days. Month ends are handled correctly, e.g. Jan 31 to Mar 1 is 1 month and 1 day.
What if I was born on February 29?
Your age is still calculated precisely. In non-leap years, your birthday countdown uses March 1.
Does it account for leap years?
Yes. Calculations use real calendar dates, so leap years and month lengths are handled correctly.
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