Calculate exact chronological age in years, months, days, hours, and next birthday.
Chronological age is the exact measure of time that has elapsed from a person's birth date to the current date or a target milestone.
Because months vary in length (28, 29, 30, or 31 days) and leap years occur every 4 years, accurate age arithmetic requires true calendar date calculations rather than dividing elapsed days by 365.25.
Exact Days & Months: When subtracting the birth date from the target date, if the target day is smaller than the birth day, days are borrowed from the previous calendar month based on that month's actual day count.
Leap Years (Feb 29): For birthdays falling on February 29th, non-leap year birthdays are accurately mapped to February 28th.
Milestones: Total days, weeks, and hours are calculated by taking the exact difference in midnight timestamps between both dates.
Pick your Date of Birth using the calendar input.
Choose the target date (defaults to today's date).
Inspect your exact age in years, months, and days, along with countdowns to your next birthday.
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Tool Yaar is also available as a lightweight native Android application. In version 7.2, navigate across 5 core sections: Home, Tools, Favourites, Playground, and Profile — with most utilities working 100% offline.
5 Core App Sections
