🎂 Age Calculator

Find out your exact age in years, months and days — and how many days until your next birthday.

Date of birth

Enter your date of birth

How is exact age calculated?

Exact age is calculated by finding the difference between your date of birth and today's date in years, months and days. This accounts for the varying lengths of months and leap years automatically. The number of days lived is simply the total number of days between the two dates.

Frequently asked questions

How do I calculate someone's age from their date of birth?

Subtract the birth year from the current year, then adjust by checking whether the birthday has occurred yet this year. This calculator does it all automatically.

Does it account for leap years?

Yes, the calculation is exact and automatically accounts for leap years in both the birth year and all years in between.

Can I calculate someone else's age?

Yes, simply enter their date of birth instead of yours.