Chronological Age Calculator

Standardized tests demand the Pearson borrow-30 result. AI and general calculators get it wrong. This app gives the exact years;months;days your manual expects.

This ad-free utility calculates precise chronological age in years, months, and days using the Pearson borrow-30 method — the professional standard required for speech-language, psychological, and educational assessments.

Accurately handles month-length variations so you can trust the result every time. Set any report date or birth date with the easy-to-use date picker.

A must-have tool for SLPs, psychologists, educators, and anyone who needs exact chronological age calculations. Our way of saving you a few minutes every day.