Age Calculator
Find your exact age in years, months and days — or your total days, weeks and hours lived.
Why calculate age in days?
Beyond curiosity, exact-day age matters for eligibility rules (school cut-off dates, insurance, sports age brackets) that count from a specific birth date rather than a calendar year.
More than just years
Beyond the headline years-months-days figure, this calculator also totals your exact age in days, weeks, and hours lived — useful for age-verification forms that want a precise figure, or just out of curiosity. It accounts for leap years and varying month lengths automatically, so the result is exact down to the day, not a rough estimate based on 365.25 days a year.
Frequently asked questions
How is my exact age calculated?
By counting the calendar days between your date of birth and today (or any date you choose), then converting that into years, months, and remaining days — accounting for real month lengths and leap years.
Can I see my age in total days instead of years?
Yes, the result includes your total age in days, weeks, and hours lived, alongside the years/months/days breakdown.
Does it handle people born on February 29?
Yes — leap-day birthdays are calculated correctly against real calendar dates rather than an approximation.