Calculate your exact age in years, months, and days
Our free age calculator determines your exact age based on your birth date. Simply enter your date of birth and click the calculate button. The calculator will show your age in years, months, and days.
You can also use this calculator to find out how old you'll be on any specific future date, or how old someone was at a particular time in the past.
Let's say you were born on January 15, 1995 and today's date is April 14, 2026:
Knowing your exact age matters in many situations:
The age calculation considers:
Subtract your birth year from the current year. If your birthday hasn't occurred yet this year, subtract one. For more precision, account for the exact month and day.
Chronological age is your age in years from your date of birth. Biological age reflects your body's physical condition and can be higher or lower than your chronological age based on health factors.
Most age calculators use date-only calculation. For exact age including time, you'd need a more specialized tool that accounts for birth time.
On average, there are 365.25 days per year (accounting for leap years). Multiply your age in years by 365.25 for an approximate total. The exact number varies based on your birth date.