Age Calculator
Calculate your exact age in years, months, and days from your date of birth.
Enter your date of birth to see your exact age.
What is this tool?
An Age Calculator determines exactly how old you are based on your date of birth. Instead of a rough number of years, it gives you a precise breakdown in years, months, and days.
How does it work?
The tool takes your date of birth and a target date (today by default), then computes the calendar difference. It correctly accounts for varying month lengths and leap years.
How to use Age Calculator
- Enter your date of birth.
- Optionally change the "age at" date.
- View your exact age instantly.
Common Use Cases
- Filling in forms that require exact age
- Planning birthdays and anniversaries
- Verifying eligibility by age
Examples
- Someone born on 1990-06-15 is over 35 years old in 2026.
- Calculate how many days until a milestone birthday.
Pro Tips
- Use the "age at" field to see your age on a specific past or future date.
Frequently Asked Questions
How is my age calculated?
We compare your date of birth with the target date and break the difference down into full years, remaining months, and remaining days.
Is my birth date stored anywhere?
No. Everything is calculated in your browser and never sent to a server.
Can I calculate age at a future or past date?
Yes. Change the "age at" date to calculate your age on any date.