How to use the Age Calculator
- Enter the birth date you want to calculate from.
- Keep today's date or add a custom target date.
- Select Calculate to see the age in years, months, and days.
Date math
Age Calculator
Calculate age in years, months, and days from a birth date and an optional target date.
Use the age calculator when you need an exact age for forms, birthdays, school records, eligibility checks, or simple date planning.
Browse all calculatorsAge Calculator FAQs
Can I calculate age for a future date?
Yes. Add a future target date to calculate how old someone will be on that date.
Does the age calculator include months and days?
Yes. It shows a detailed age result in years, months, and days.