How Old Am I? Exact Age Calculator

Calculate exact age in years, months, and days, plus totals in months, weeks, and days, and time until the next birthday.

How do you calculate exact age from a date of birth?

To calculate exact age, subtract the date of birth from today's date and express the difference in completed years, then remaining months, then remaining days. If the birthday hasn't passed this year, the year count steps down by one. The calculator below does this and also shows totals in months, weeks, and days.

Result

Age: 26y 10m 1d
Total months: 322
Total weeks: 1,400
Total days: 9,802
Day of week born: Saturday
Next birthday: 2027-01-01 (60 days)

Born Saturday, January 1, 2000, age on Monday, November 2, 2026 is 26 years, 10 months, and 1 days.

How to calculate exact age

Enter the date of birth.
Leave Use today's date checked for current age, or uncheck and pick a different reference date.
Read the exact age in years, months, and days.
Check totals in months, weeks, and days, plus days until the next birthday.

Example

Born May 14, 1990, age on June 14, 2026 is 36 years, 1 month, and 0 days.

Age Difference CalculatorCompare two birth dates to find the exact age gap.Open Date Difference CalculatorCount days, weeks, months, and years between two dates.Open Days Until CalculatorCount how many days are left until any future date.Open Add or Subtract Days CalculatorFind a future or past date by adding or subtracting time.Open

Frequently asked questions

How is age calculated?

Calcadian counts complete years, months, and days from the date of birth to the “as of” date, then derives totals in months, weeks, and days.

What if my birthday hasn't happened yet this year?

Calcadian only counts full years that have completed. The remaining months and days reflect how far into the next year you are.

Can I calculate age on a past or future date?

Yes, uncheck “Use today's date” and pick any reference date.

Does it handle leap-year birthdays?

Yes. February 29 dates roll to March 1 in non-leap years for the next-birthday calculation.

Is anything saved?

No. Calculations happen in your browser only.

Hear about new calculators

An occasional email when we add a calculator or change how one works. No sign-up needed to use the calculators.

To remove your address from our updates list, contact us through the Contact page.

Put this calculator on your site

Free basic iframe embed, no account or API key needed.

Embed this

Want to check the assumptions behind a result? See how Calcadian handles dates and time.

Calcadian calculators are for general planning and informational use. Please verify critical deadlines, legal, payroll, tax, HR, or official requirements with the relevant authorities or a qualified professional.