Free Online Tool
Free Age Calculator
Find your exact age in years, months and days, plus total days lived and your next birthday — instantly.
Age Calculator
Exact age from your date of birth
—Years
—Months
—Days
What Is an Age Calculator?
An age calculator works out your exact age — down to the year, month, and day — from your date of birth, rather than just the year difference. ToolKit Pro's calculator also shows your total days lived and how long until your next birthday.
How to Use This Tool
- Select your date of birth using the date picker.
- Your exact age in years, months and days appears instantly.
- See your total days lived and your next birthday below the result.
Benefits of Using ToolKit Pro's Age Calculator
- Exact precision — years, months and days, not just a rounded figure.
- Total days lived — a fun, precise lifetime count.
- Next birthday countdown — know exactly how many days remain.
- Free and private — calculated locally in your browser.
Why Use ToolKit Pro?
Whether you're filling out a form that asks for exact age, curious about your total days lived, or just want a precise countdown to your next birthday, ToolKit Pro's Age Calculator gives you an instant, accurate answer.
How Age Is Calculated
- The calculator subtracts your date of birth from today's date, then breaks the difference down into full years, remaining months, and remaining days — accounting for varying month lengths and leap years.
Real-Life Examples
- Filling out an official form that requires your exact age in years and months.
- Finding out how many days you've been alive as a fun milestone.
- Checking how many days remain until your next birthday.
Helpful Tips
- The calculation automatically accounts for leap years, so your result stays accurate even across February 29th birthdays.
Explore Related Tools
More free calculators and converters from ToolKit Pro.
FAQs
Frequently Asked Questions
Everything you need to know about our free Age Calculator.
It calculates the difference between your date of birth and today's date, breaking the result down into exact years, months and days.
Yes, the tool shows your total number of days lived alongside your age in years, months and days.
This calculator is designed to calculate age up to today's date. For age-on-a-specific-date calculations, subtract manually using the same date-of-birth logic.
Yes, it's completely free with no sign-up required.
Yes, the calculation correctly accounts for leap years and varying month lengths.