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Age Calculator
Work out an exact age in years, months and days — and count down to the next birthday.
Age
How age is counted: full years, then full months since the last birthday, then the remaining days — the way ages are counted legally and on forms. Someone born on 29 February has their birthday counted on 28 February in non-leap years. Change the second date to find someone’s age on a past or future date.
About the Age Calculator
The Age Calculator works out an exact age in years, months and days from a date of birth, on today’s date or any other date. It also shows the age in total months, weeks, days and hours, the day of the week you were born and a countdown to the next birthday — useful for forms, eligibility checks and fun facts.
How to use the Age Calculator
- Enter the date of birth.
- Leave the second date as today, or pick any date.
- Read the exact age in years, months and days.
- Check the totals and the next birthday countdown.
Frequently asked questions
How do I calculate my exact age?
Count the full years since your birth date, then the full months since your last birthday, then the remaining days. The calculator does this for you.
How is age counted for people born on 29 February?
In non-leap years their birthday is usually counted on 28 February, which is what this calculator uses.
Can I find my age on a future date?
Yes. Change the second date to any date to see how old someone will be — or was — on that day.