Age Calculator

Enter a birth date and this calculator works out the exact age down to years, months, and days — accounting for leap years and the varying lengths of months so the result is precise, not approximate.

Beyond the headline figure, the tool totals the elapsed time in months, weeks, days, and hours, which is handy for milestone planning: countdowns to birthdays and anniversaries, school or program eligibility cut-offs, and retirement or benefits thresholds that depend on exact age.

Everything runs instantly in your browser and nothing you enter is stored or sent anywhere — dates stay on your device. For legal or official purposes, always rely on the birth certificate or government record itself rather than any calculator output.