Calculate your exact age in years, months and days from your date of birth, or the age on any chosen date. Free online age calculator.
About this tool
Calculate a calendar age between a birth date and a selected comparison date.
How to use Age Calculator
- Enter Date of birth.
- Set Age at the date of to today or another date.
- Read Exact age and the totals shown below it.
Worked example
Compare a birth date of 2000-01-01 with 2026-01-01 to obtain 26 calendar years.
Does it calculate the exact time since birth?
The controls take dates rather than a birth time. Hour totals are date-based estimates, not a time-of-day record.
Can I use this to decide a legal age deadline?
Check the applicable official rules. This utility calculates date differences and does not determine jurisdiction-specific eligibility.
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