Chronological Age Calculator helps Speech Language Pathologists, Special Educators, Physical Therapists, Occupational Therapists, and other Assessment Team members to quickly and easily calculate student or patient chronological age and critical delay.

The chronological age calculator is useful for Early Intervention as well as professionals working with older children either in medical, clinical or educational settings since it displays the chronological age in both year:month:day format and month:day format when given the date of birth and date of examination.

You can change critical delay percentage based on your system's qualifying criteria. For different delay criteria based on single or multiple areas of need, the critical delay can be changed and recalculated without also resetting the dates.