Age Calculator

Calculate age from birth date to as-of date.

Create QA fixtures for eligibility, profile forms, and date-of-birth validation without needing JavaScript.

No sign-in Form fallback Copy/download

Birth date

As-of date

Ctrl + Enter

Age result

Ready

Birth date: 2000-04-30
As of: 2026-04-28
Age: 25 years, 11 months, 29 days
Next birthday: 2026-04-30
Days until next birthday: 2