ScanSpotAge Calculator
Calculate exact age in years, months, days.
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🎂 Age Calculator
Your exact age in years, months and days.
Calculate an exact age in years, months and days from a date of birth, with totals in days and weeks plus a next-birthday countdown.
How to use the Age Calculator
- Enter the date of birth.
- The age is shown in years, months and days, alongside the running total in days, weeks and hours.
- The next-birthday countdown updates from today's date.
Why people use it
- Many forms and eligibility rules need an age in years and months, not just whole years.
- A total day count matters for rules that measure from a first entry or start date.
- The next-birthday countdown is handy for reminders and planning.
Frequently asked questions
How is the next birthday calculated?
From today's date to the next occurrence of the birth month and day. For a 29 February birthday the tool uses 1 March in non-leap years, so the countdown never breaks.
Why does my day count differ from a rough estimate?
Leap years. A four-year span contains 1,461 days, not 1,460, and a century year that is not divisible by 400 is not a leap year.
Is this valid for official use?
The arithmetic is accurate, but official age rules sometimes have their own conventions — for instance whether the birthday itself counts as the start or the end of the year. Check the specific rule.