Age Calculator
Calculate exact age in years, months, and days.
Overview
Calculates an age from a birth date, broken down into years, months, and days. Useful for forms, eligibility checks, and just satisfying curiosity. It runs in your browser.
How it works
The tool takes the birth date you enter and measures the time between it and today, then expresses that span as a number of years, months, and days. It accounts for the different lengths of months and for leap years, so the breakdown is accurate to the day. It can also show the total number of days that have elapsed since the birth date.
How to use it
- Enter the date of birth.
- The tool compares it to today's date.
- Read the age in years, months, and days.
- Use the figure where you need it.
Examples
Exact age
Someone born on January 1, 2000 is exactly 26 years, 0 months, and 0 days old on January 1, 2026.
Partway through a year
Between birthdays, the result shows the extra months and days on top of the full years.
FAQ
Does it account for leap years?
What date does it compare against?
Can I use it for any date of birth?
Does it show total days?
Is my data uploaded?
Related tools
Embed this tool
Paste this snippet to put the tool on your own site. It runs entirely in the visitor's browser, the same as it does here.