Age Calculator
Calculate Exact Age From Date of Birth
Use this free age calculator to find your exact age from your date of birth. Enter your birthday and choose today or any specific date to see your age in years, months, days, weeks, hours, minutes and seconds.
Age in Different Units
Hours, minutes, and seconds are approximate based on 24-hour days.
Your Privacy Matters
All calculations happen in your browser. Your dates are never sent to our servers.
How to use Age Calculator
Follow these simple steps to use the tool.
- 1 Enter your date of birth.
- 2 Choose today or a specific date to calculate age on.
- 3 View your exact age in years, months and days.
- 4 See your total age in other units like weeks, days, and hours.
- 5 Check when your next birthday is and how many days are left.
- 6 Copy or share the result instantly.
Frequently Asked Questions
Answers to common questions about our Age Calculator tool.
How do I calculate my age from date of birth?
Enter your date of birth and choose the date to calculate age on. The calculator subtracts your birth date from the selected date and shows the result in years, months and days.
What is my exact age today?
Your exact age today is the number of full years, full months and remaining days between your date of birth and today’s date.
Can I calculate age on a specific date?
Yes. Change the "Calculate age on" field to any past or future date to see your age on that date.
Does this age calculator handle leap years?
Yes. The calculator handles leap years and different month lengths. For February 29 birthdays, use the advanced setting to choose whether non-leap-year birthdays are treated as February 28 or March 1.
Is my date of birth uploaded to a server?
No. The tool runs in your browser and does not send your date of birth to a server.
What is chronological age?
Chronological age is the amount of time that has passed from a birth date to a selected date.
Can I calculate my age in days?
Yes. The result includes total days, weeks, hours, minutes and seconds.
Why can age calculations differ between websites?
Different tools may handle month-end dates and February 29 birthdays differently. This tool uses a consistent calendar-date method and clearly explains the rule.
About Age Calculator
Fast, private, browser-based age calculator that shows exact age, total days, and next birthday.
Age Calculator by Date of Birth
This age calculator uses your date of birth to calculate chronological age. Chronological age is the actual time that has passed from your birth date to the selected date.
Exact Age in Years, Months and Days
The main result shows full years, full months and remaining days. This is more useful than only subtracting years because it handles birthdays, month length differences and leap years.
Age on a Specific Date
You can use the "Calculate age on" field to find your age on any past or future date. This is useful for forms, school admission, document eligibility, tests, records and planning.
Days Until Next Birthday
The calculator also shows your next birthday and how many days are left until it arrives.
What is an age calculator?
An age calculator is a tool that calculates the time between a birth date and a selected date. It usually shows age in years, months and days.
How is age calculated?
Age is calculated by counting full years from the birth date to the selected date, then full months after the last birthday, then the remaining days.
What does exact age mean?
Exact age means the full years, full months and remaining days between two dates.