Calculate your exact age in years, months, days, hours & minutes. Get your next birthday countdown, zodiac sign, Chinese zodiac, and life milestones — all in one place.
Age is calculated by subtracting your date of birth from the current date, then handling month and day borrowing. For example, if you were born on 15 August 1995 and today is 14 September 2026, your age is 31 years, 0 months, 30 days. The tool also converts this into total months (373), total weeks (1,625), total days (11,377), total hours (273,048), total minutes (16,382,880), and total seconds (982,972,800) — assuming no birth time. With birth time provided, the hours and minutes are calculated with second-level precision.
Our age calculator correctly handles leap years — including the special case of people born on 29 February. If you were born on a leap day, your non-leap-year birthday is celebrated on either 28 February or 1 March depending on regional convention. We use 1 March as the default for consistency.
The tool displays both your Western zodiac sign (based on birth month and day, e.g., Leo for 15 August) and your Chinese zodiac animal (based on birth year, e.g., Pig for 1995). Both are computed using standard astronomical boundaries.
The age calculator subtracts your date of birth from the current date (or a specified "as of" date), handling month-length differences, leap years, and time zones. It then converts the result into years, months, days, and smaller units like hours, minutes, and seconds. All calculations happen instantly in your browser — no data is sent to any server.
Yes — the calculation method matches the Gregorian calendar convention used by courts, government agencies, and medical institutions. However, for legal documents such as passports, visas, or age verification, always rely on the date shown in your official birth certificate. For financial planning, medical assessments, and personal reference, our calculator provides the same accuracy as any offline calculation.
Time of birth is optional. Including it gives you an age that is precise to the second — useful for astrology, astronomy, and precision-based calculations. If left blank, the tool assumes midnight (00:00:00) as the default, which is the standard for legal and medical purposes.
For people born on 29 February (leap day), non-leap-year birthdays are treated as occurring on 1 March in most jurisdictions. Our tool follows this convention and displays the countdown to 1 March accordingly. Some cultures celebrate on 28 February — you can manually adjust the "as of" date if you prefer that convention.
Chronological age is what this tool calculates — the exact time elapsed since birth. Biological age is a measure of how well your body functions relative to your chronological age, determined by biomarkers, lifestyle, and genetics. Chronological age is a fixed number; biological age can be higher or lower depending on health factors.
Yes. Use the "Calculate Age As Of" field to enter any future date. This is useful for planning milestones — like when a child will turn 18, when you'll reach retirement age, or when a visa will expire. The tool handles future dates with the same precision as past dates.
The result panel shows total age in years, months, days, hours, minutes, and seconds. It also displays cumulative totals: total months, total weeks, total days, total hours, total minutes, and total seconds. This is useful for baby age tracking (in months), pregnancy timelines (in weeks), or project planning (in days).
Absolutely. All calculations run 100% in your browser using JavaScript. No data is transmitted to any server, stored in a database, or shared with third parties. You can even use the tool offline — it works entirely client-side.
Milestone ages are significant birthdays that often trigger legal, financial, or social events. Examples include:
Yes — the underlying algorithm is standard Gregorian calendar arithmetic and can be implemented server-side for age verification. For enterprise solutions, marketing automation, or CRM integrations, contact our team for custom development.
Yes — completely free, no signup, no watermark, no limits. Brought to you by Endeavour Marketing, a digital marketing agency in Pune, India.
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