How old are you, exactly?
Enter your birth date to get your exact age — plus a few fun numbers most people never bother to work out.
How this age calculator works
Enter your date of birth and choose the date you want to calculate from. The calculator gives your exact age in full years, months, and days, while automatically accounting for leap years and different month lengths.
You can use today’s date to answer “how old am I?” or choose another date to check your age on a past or future day. This can be useful for birthdays, eligibility dates, applications, graduations, anniversaries, and other date-based milestones.
More date tools
Need a different date calculation? Use Days Between Dates to measure the time between two dates, or the Countdown Calculator to see how long remains until a birthday or other event.
Frequently asked questions
Why would I calculate age "as of" a different date?
It's useful for eligibility rules, visa applications, contracts, or figuring out how old you'll be on a future date, like a wedding or graduation.
Does this account for leap years?
Yes. The calculation is based on actual calendar dates, so leap years are handled automatically — no manual adjustment needed.
Is my birth date stored anywhere?
No. The calculation happens entirely in your browser. Nothing is sent to a server or saved.
This tool provides general date calculations for informational purposes and isn't a substitute for official age verification.