Chronological Age Calculator

AgeVault is the chronological age calculator for speech-language pathologists (SLPs), school psychologists, occupational therapists and early intervention teams. Enter a date of birth and a test date and get a child's exact age in years, months and days, the way standardized test manuals ask for it. Working out chronological age by hand, borrowing months and days across leap years, is slow and easy to get wrong, and one day can move a child into a different age band. AgeVault does the date math, remembers every child on your caseload, and shows every age on one report date. EXACT CHRONOLOGICAL AGE IN SECONDS • Age calculator for testing: date of birth + assessment date = years, months and days. • Two calculation methods to match your test manual: calendar-exact or 30-day borrowing. The method is named on every result. • See the working: every step of the age calculation is shown. • Leap years, month ends and year and century boundaries are checked every time the app opens. • Copy the age in one tap and paste it into your evaluation report or IEP notes. • Age formats for reports: 7 years 3 months 19 days, 7y 3m 19d, or years;months (7;3). STUDENT ROSTER FOR YOUR CASELOAD • Save each child once, with a name or initials and a date of birth. • Group students by school, grade, classroom or therapy day. • Search and sort by name or by age. • Keep several assessment dates per child for re-evaluations. AGE REPORT: EVERY CHILD'S AGE ON ONE DATE • Pick one report date and see the chronological age of your whole caseload at once. • Tick the children you need, then copy the list or export it as PDF or CSV for Excel or Google Sheets. • Batch ages for screening days, evaluations and annual reviews. PRIVATE AND OFFLINE • No account, no sign-up, no cloud and no ads. • Student names and birth dates stay on your phone. • Works offline in every school building. • Optional biometric lock (fingerprint or face unlock). • Move your roster to a new phone with an export file. WHO USES AGEVAULT School SLPs and speech therapists, school psychologists and psychometrists, special education teams, pediatric occupational therapists, early intervention providers, and preschool and kindergarten teachers who need a child's exact age on a specific date. FREE AND PRO Free: unlimited age calculations, up to 20 saved children and 10 groups. AgeVault Pro is a one-time purchase, not a subscription: unlimited children, groups and assessment dates, the age report for your whole roster, PDF and CSV export, and the app lock. AgeVault calculates ages. It does not score tests, diagnose, or store clinical records. Download AgeVault, the chronological age calculator for SLPs, school psychologists and OTs, and get every test-day age right the first time.