Age Calculator
Calculate exact age in years, months and days plus your next birthday.
What is the Age Calculator?
An age calculator works out precisely how old you are — not just the year, but the months and days too — from your date of birth to today or any date you choose. People use it for forms that need an exact age, checking eligibility, filling in official documents, or just curiosity about how many days old they are. It also tells you how long until your next birthday. Pick your dates and it does the calendar maths, leap years and all.
How to use the Age Calculator
- Enter your date of birth.
- Leave the end date as today, or set a different date.
- Read your exact age and days until your next birthday.
Why use Quably's Age Calculator?
- Exact age in years, months and days
- Handles leap years correctly
- Shows the countdown to your next birthday
- Works for any two dates
- Free and instant
Frequently asked questions
How is my exact age calculated?
It counts full years from your birth date to the end date, then the remaining months and days, accounting for how many days each month has.
Does it handle leap years?
Yes — leap days are taken into account so the day count is accurate.
Can I calculate age between two past dates?
Yes. Change the end date to any date and it works out the gap.
Is the age calculator free?
Yes, and no sign-up is required.