Age Calculator
Calculate your exact age in years, months, weeks and days from your date of birth, plus the number of days until your next birthday.
🔒 Runs 100% in your browser — nothing is uploaded
About the age calculator
Find an exact age in years, months and days from any date of birth. It also shows your age in total months, weeks and days, plus how many days are left until the next birthday. Everything is calculated locally in your browser.
Frequently asked questions
How is my age calculated?
We count the full years, then the remaining full months, then the remaining days between your date of birth and the chosen date — the same way you would say your age in everyday life.
Can I calculate age on a future or past date?
Yes. Change the "age at date" field to any date to see how old someone was, or will be, on that day.
Is my date of birth stored?
No. The calculation happens in your browser and nothing is saved or uploaded.