Exact Age Calculator
Calculate your exact age in years, months, and days from your birth date to today.
Results
What is it?
The Exact Age Calculator computes how old you are in years, months, and days by comparing your birth date to a target date. It uses a simplified 365-day year and 30-day month model to produce a close approximation without requiring a full calendar library.
How to use
Enter your birth year, month, and day in the first three fields. Then enter today's year, month, and day (or any target date) in the last three fields. The calculator instantly shows your approximate age broken down into years, months, and days, plus the grand total in days.
Example scenario
Someone born on March 15, 1990 wants to know their age on June 30, 2025. The calculator produces approximately 35 years, 3 months, and 15 days — giving a quick, readable breakdown without needing any app or calendar lookup.
Pro tip
Use milestone birthdays (30, 40, 50) as goal-setting checkpoints. If you're approaching a milestone, enter that future birthday as the "current date" to count down exactly how many days remain. For truly precise age (accounting for leap years and variable month lengths), a dedicated calendar API will give the exact count.