Age Calculator
Enter a birthdate (and optionally a reference date) to compute age in whole years.
Calculator
Age Calculator
Result
—
Formula
completed years since birthdate
Step-by-step
- 1
Enter the birthdate
Use YYYY-MM-DD format.
- 2
Optionally pick a date
Defaults to today if empty.
Worked example
Example input: birthdate: 1990-06-15, onDate: 2026-06-15
Result: 36
Related tools
- Date Difference
Days between two dates.