This calculator works out exact age from a date of birth, counting the full years, months and days that have passed up to today or any other date you choose. It's a straightforward subtraction under the hood, but one that has to account properly for leap years and varying month lengths rather than just dividing days by 365.
Beyond the headline age, it's useful for working out eligibility ages for things like the age pension, learner's permits or seniors card thresholds, where the exact number of years matters rather than a rough estimate. Results update instantly as the birth date changes, with no need to reload anything.
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