Frequently Asked Questions

It compares your date of birth with a second date (today, by default) and counts complete calendar years first, then the complete months that follow, then the leftover days. Because it counts real calendar units rather than dividing by an average year length, the result matches the way people normally state their age.

Yes. Alongside the calendar result, AgeWise shows the total days, weeks, hours and minutes represented by the calendar-day span between the two dates. The day count is an exact count of calendar days, not an estimate based on 365.25 days per year, and the hour and minute figures are direct conversions of that day count rather than a measure of exact lifetime hours or minutes.

Yes. Every February 29 that falls between your birth date and the comparison date is included in the totals, and month lengths are read from the real calendar rather than assumed to be 30 or 31 days.

AgeWise treats February 28 as your birthday in common years and February 29 in leap years. That rule keeps exactly one birthday in every calendar year, so countdowns and next-birthday dates stay consistent. Some jurisdictions use March 1 instead; if that matters legally for you, check your local rule.

Yes. The Age on Date tool accepts any target date, past or future, and reports how old the person was or will be on that exact day.

Yes. Enter the older person's date of birth as the start date and the younger person's as the end date in the Date Difference tool. The result is the gap between them in years, months and days.

It is an exact calendar calculation rather than an approximation: complete years, then complete months, then leftover days, using real month lengths. The only judgement call is the February 29 rule described below, and the result depends on the date your device reports as today.

AgeWise counts the actual number of calendar days between your date of birth and the comparison date, including every leap day in between. It does not multiply years by 365 or 365.25, so the total matches a day-by-day count of the calendar.

Small differences usually come from method: some tools divide days by 365.25, some count the end date as an extra day, and some treat February 29 birthdays as March 1 in common years. AgeWise uses whole calendar units, does not add the end date, and uses February 28.

No birth time is requested, so results are based on dates only. The default comparison date is the date your device shows, so near midnight someone in another time zone may see a result one day different.

Yes. The layout adapts to small screens, the date fields use your phone's native date picker, and results stack into readable cards. No app or install is needed.

Yes, all AgeWise tools are free to use and do not require an account or sign-up.

The calculations run in your browser, and the dates you type are not sent to us or saved to an account. Standard web server logs (such as IP address and page requests) may still be recorded by our hosting provider, as described in the Privacy Policy.