Age Calculator

The classic age calculator: pick your birth date and get your exact age today — down to the day.

Your date of birth

Results update instantly — no button needed · Calculated in your local timezone

Select your date of birth to see results instantly

An age calculator that answers instantly

Most age calculators make you fill a form and click a button. This one updates as soon as your birth date is complete — the years/months/days breakdown, your next birthday, and the fun stats all refresh together.

The result card shows your age in the three formats people actually use: the precise years-months-days form, the total count of days you have been alive, and your age in whole years for quick reference.

Which age does the law use?

In most Western countries your legal age is the number of complete years you have lived: you turn 18 on your 18th birthday, not the day before. This calculator uses the same complete-years convention.

Two popular exceptions: Korean age (세는 나이) starts at 1 and increments every New Year, and Chinese nominal age (虚岁) starts at 1 and increments every Lunar New Year. Both are one click away on this site — see the dedicated calculators below.

free date & age tools

clicks needed for a result

100%

local-timezone accurate

Frequently asked questions

＋How do I calculate my age?

Enter your date of birth above. Your age is the number of complete years, months and days between your birth date and today. The calculator also shows your total days, hours, weeks and months alive.

＋What is my age in days?

Select your birth date and the "Total days alive" card shows the exact count. You can also visit the dedicated age-in-days calculator for a day-focused view.

＋Is this age calculator accurate across timezones?

Yes. It computes against your device's local date and displays the "as of" date it used, so the result is correct for wherever you physically are.