Age Calculator

What does the age calculator do? Enter a birth date and it works out the exact age in years, months, and days — accounting for leap years and the varying lengths of months, so the result is precise rather than approximate. It also totals the elapsed time in months, weeks, days, and hours.

What is exact age useful for?

Milestone planning: countdowns to birthdays and anniversaries, school or program eligibility cut-offs, and retirement or benefits thresholds that depend on exact age. A rough 'age in years' is not enough when a rule turns on a specific date.

Is anything you enter stored or sent anywhere?

No. Everything runs instantly in your browser, and nothing you enter is stored or sent anywhere — the dates stay on your device.

Can you use the result for official purposes?

For legal or official purposes, always rely on the birth certificate or government record itself rather than any calculator output. The calculator is a planning aid, not a document.