Enter your date of birth to see your exact age in years, months and days, plus your next birthday. Calculate your age today or on any chosen date.
How to calculate your age
Enter your date of birth. The reference date is set to today, but you can change it to find your age on a past or future date. The result shows your completed years, months and days, your next birthday, and total time lived in other units.
To work backwards, choose Age or Reference date above. For a general time span between two dates, use the date difference calculator.
Related calculators
Frequently asked questions about the age calculator
Enter your date of birth and use today or any other reference date. The calculator shows your exact age in years, months, and days.
Enter your date of birth and set the reference date to the day you want to check. The calculator shows your age on that date in years, months, and days.
Yes. In reverse mode, enter an age and a reference date to estimate the date of birth or the possible birth date range, depending on the unit you use.
Yes. Enter a date of birth and an age, and the calculator returns the calendar date when that age is reached.
Subtract the birth year from the current year. If the current month and day are before the birth month and day, subtract 1 from that result. For example, someone born on 15 June 2000 is 25 on 1 June 2026, but turns 26 on 15 June 2026.
A decimal age expresses your age as a single number instead of years, months, and days, such as 25.4 years. Switch the result unit to Years (decimal) to see your exact age this way.
