Age Calculator
Calculate your exact age in years, months, and days
About the Age Calculator
The Age Calculator tells you exactly how old you are in years, months and days, counted from your date of birth to today. It is handy for forms that ask for an exact age, for checking eligibility cut-offs, or simply for curiosity.
How it works
The calculator subtracts your birth year, month and day from today's date. If the day of the month hasn't been reached yet, it borrows the number of days in the previous month; if the month hasn't been reached, it borrows 12 months from the year. This is the same "completed units" method used on official documents.
How to Use Age Calculator
Enter Your Data
Pick your date of birth in the date field.
Run the Tool
Press Calculate.
Use the Result
Read your age in years, months and days.
Why Use Our Age Calculator?
100% Free
No registration, no hidden fees, no limits — ever.
Privacy First
All processing runs in your browser. Your data never leaves your device.
Mobile Friendly
Works perfectly on phones, tablets, and desktops.
Instant Results
Results appear as soon as you run the tool.
Frequently Asked Questions
Q. Does it account for leap years?
Yes. The calculation uses real calendar dates, so February 29 and months of different lengths are handled automatically.
Q. Why might my age differ from another calculator by a day?
Some calculators count the current day as a full day or use a fixed 30-day month. This tool counts completed days only, using the actual length of each month.
Q. Can I calculate the age of something other than a person?
Yes. Enter any start date, such as when a company was founded or a pet was born, and the result is the elapsed time to today.