Time & Date Calculators
Age Calculator
Use this age calculator to calculate age in years, months, and days from a date of birth to today or any selected date.
Use the calculator
Formula
Age = Difference between date of birth and calculation date, expressed in years, months, and days.
Worked examples
Born on 1 January 2000 and calculated on 1 January 2026 gives 26 years.
Born on 10 May 1995 and calculated on 8 May 2026 gives 30 years, 11 months, and 28 days.
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Frequently asked questions
How does the age calculator work?
It compares the birth date with the calculation date and returns the full years, remaining months, and remaining days.
Can I calculate age on a future or past date?
Yes. Choose a calculation date instead of leaving it as today.
Does it show total days lived?
Yes. The result also includes the total number of days between the two dates.