Find your exact age in years, months, weeks and days. See how many days until your next birthday!
This free age calculator works out your exact age in years, months and days from your date of birth. It's useful for forms, eligibility checks, milestone planning, or simply finding out precisely how old you — or someone else — are, down to the day.
Enter a birth date and, optionally, a date to calculate the age at, and the result updates instantly. All calculations happen in your browser, using the real calendar including leap years.
Knowing your exact age in years, months and days is surprisingly useful in Australia. Age thresholds decide when children start school (the cut-off date differs by state and territory), when you can get a learner permit, when super becomes accessible, and when the Age Pension may start. This calculator works out your precise age from your date of birth, plus extras like total days lived and your next birthday.
The calculation is calendar-aware: it counts whole years first, then whole months, then remaining days, and it handles leap years correctly. Someone born on 29 February still ages one year per calendar year — the tool simply treats 28 February as the anniversary in non-leap years.
People also use exact-age calculations for milestone planning: retirement dates, visa and citizenship applications that require age at a specific date, and working out an age difference between two people. Enter any date of birth and, if you like, change the comparison date to see an age at a date in the past or future.