Age calculation for an assessment date
Some educational, speech-language, psychological, and developmental assessments organize norms by chronological age. This tool subtracts the birth date from the test date and reports complete calendar years, months, and remaining days. It also provides completed months and total elapsed days.
Use the actual administration date
Enter the date on which testing occurred, not today's date or the date a report was written. Double-check both dates against the source record before copying a result.
Always follow the official test manual
Publishers and institutions may specify borrowing methods, rounding rules, age ranges, cutoff dates, or special procedures. A general web calculator cannot determine which rule applies. Treat this result as a preliminary calendar calculation and verify it using the official manual or authorized scoring system.
TickTock Age is independent and is not affiliated with or endorsed by any assessment publisher. It does not score tests, interpret results, determine eligibility, or replace qualified professional judgment.