Age Calculator use surface

Deterministic calendar-age arithmetic only, with no eligibility, school-calendar, or legal-rule lookups.

Execution form

Age Calculator

Validation errors are returned as safe JSON from the execute route.

Expected output

Current result posture.

Years, months, and days
Total days and week-equivalent summary
Next birthday date and days until next birthday

This is a deterministic arithmetic helper. No inputs or outputs are stored. No account is required. No external service is used. School, university, college, training-provider, legal, or eligibility rules may differ.