Age Calculator

Frequently asked questions

How is age calculated in years, months, and days?

Age is calculated by comparing the birth date with the target date (or current date). Month lengths (28, 29, 30, or 31 days) and leap years are taken into account to determine the exact number of completed years, remaining months, and remaining days.

How does the Age Calculator handle leap years?

Leap years add an extra day (February 29th) every 4 years (except century years not divisible by 400). The calculator precisely calculates exact days between dates, ensuring leap years are factored into total days and birthday countdowns.

What if someone was born on February 29th (Leap Day)?

For individuals born on February 29th, in non-leap years, their official or common birthday is celebrated on either February 28th or March 1st. This calculator defaults to February 28th in non-leap years for countdown calculations.

Can I calculate age for a future or past date?

Yes! You can change the "Age at Date" field to any date in the past or future to calculate how old a person was or will be on that specific date.