Age Calculator
Calculate exact age in years, months & days.
100% private — runs in your browser, nothing is uploaded.
Pick your date of birth above to see your exact age.
How to use the Age Calculator
- 1Enter your date of birth
Use the date picker to select the day you were born.
- 2Choose the target date
Leave it as today to get your current age, or pick another date to see your age then.
- 3Read your exact age
See your age in years, months and days, plus days until your next birthday.
- 4Explore the totals
Check your total lived days, weeks, hours and minutes in the cards below.
Examples
| Input | Output |
|---|---|
Born 1990-01-01, today 2026-07-09 | 36 years, 6 months, 8 days |
Born 2000-02-29 | Leap-year birthdays handled correctly |
Free online age calculator
This age calculator tells you your exact age from your date of birth — in years, months and days — and adds up how many total days, weeks, hours and minutes you have lived. It also counts down the days to your next birthday.
What you can use it for
- Finding your precise age for forms, visas and applications.
- Checking age eligibility on a specific cut-off date.
- Calculating someone else’s age from their birthday.
- Fun facts — how many days or hours old you are.
Accurate calendar math
Rather than dividing by an average month length, the calculator counts whole calendar months and days, so leap years and varying month lengths are always correct. Everything runs in your browser, which means your date of birth never leaves your device and the tool works even offline.
Frequently Asked Questions
How is my exact age calculated?
The tool subtracts your date of birth from today (or any date you choose) and breaks the result into full years, months and days, accounting for different month lengths and leap years.
Does it account for leap years?
Yes. The calculation uses real calendar dates, so leap years and the actual number of days in each month are handled automatically.
Can I calculate my age on a future or past date?
Yes. Change the “age at date” field to any date to see how old you were, or will be, on that day — useful for eligibility cut-offs and anniversaries.
How many days until my next birthday?
The result box shows the number of days remaining until your next birthday, counted from the “age at” date.
Is my date of birth stored anywhere?
No. All calculations run inside your browser. Your date of birth is never uploaded or saved, so it stays completely private.
Why does the age in months and days look different from a simple division?
Because months have different lengths, the tool counts whole calendar months rather than dividing days by 30. That gives a precise “X years, Y months, Z days” that matches how age is normally stated.