Online calculator
Age Calculator
Calculate your exact age in years, months and days.
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What does the age calculator calculate?
Use this age calculator to determine your exact age based on your birth date and a chosen reference date. You will get not only years, but also months, days and your total number of days lived.
Calculation logic
Age = difference between date of birth and reference date Output in years, months and days Additionally: total days lived and total months lived
Example
If you were born on 1990-06-15 and use 2026-03-31 as the reference date, the calculator determines your exact age in years, months and days up to that date.
What does the age calculator calculate?
The calculator determines your exact age between your date of birth and a reference date. It calculates calendar-accurate years, months and days. It also shows your total age in days and months.
Frequently asked questions
Is this more accurate than using only the birth year?
Yes. This calculator uses your full birth date and a reference date, making it much more accurate than a simple year-based calculation.
Can I calculate my age for a past or future date?
Yes. You can enter any reference date and calculate your exact age for that specific day.
What if my birthday has not happened yet this year?
Then the calculator correctly shows fewer full years. That is why a day-accurate calculation matters.
Why does it show months and days too?
Many users want more than just full years. This can be useful for forms, deadlines or personal reference.
Is this calculator suitable for official use?
This calculator is intended for informational purposes. For legal or official matters, you should verify the result independently.
Legal notice
This calculator is for general informational purposes only. All results are non-binding and do not replace legal, official or medical verification.