Use our free age calculator to calculate your age in years, months, and days. Our age calculator in years months days provides detailed age calculations including total days, weeks, hours, and minutes lived.
Calculate your exact age in years, months, days, weeks, hours, and minutes. Discover your zodiac sign, Chinese zodiac, life expectancy, and more fun facts about your birth date. Perfect for answering "How old am I?" questions.
Leave as today's date to calculate current age
For life expectancy calculation
For life expectancy calculation
Most people searching for an age calculator by date of birth Australia need a precise answer for a form, sports age group, licence renewal, or school cut-off — not a rough “born in 1995” guess. Enter the date of birth above (day/month/year as you know it) and, if needed, change the “current” date to the day you must be that age.
Australian processes usually care about completed years on a specific calendar date. This tool also shows months and days so you can see whether someone turns a milestone birthday before a deadline. Leap-year births (29 February) are handled when the target year is not a leap year. Nothing is uploaded — the math runs in your browser.
Tip: for “how old will I be on …?” set the as-at date to that day. For age between two historical dates, try our related date tools linked below.
This calculator is very accurate and accounts for leap years. It calculates your exact age down to the day, including the precise number of months and days.
Yes! You can change the current date to calculate how old someone was or will be on any specific date in the past or future.
The calculator properly handles leap years and February 29th birthdays. It will show your age correctly even in non-leap years.
Different formats help you understand your age in various contexts - years for general age, days for precise calculations, and weeks/hours for fun comparisons.
The life expectancy is based on general statistics for your gender and country. It's a rough estimate and doesn't account for personal health, lifestyle, or family history. It's meant for entertainment and general reference only.
The calculator uses the Western zodiac system (Aries, Taurus, etc.) and the Chinese zodiac system (Rat, Ox, Tiger, etc.). The Western zodiac is based on your birth date, while the Chinese zodiac is based on your birth year.
Enter your date of birth (and optionally an “as at” date). The calculator counts completed years, then remaining months and days, accounting for leap years — the same approach used for Australian age-based eligibility checks.