Chronological Age Calculator
Exact age at testing, in seconds. Built by a practicing psychologist for psychologists, school psychologists, and anyone who scores standardized tests.
Download for Windows — FreeFrom Sana Mente Labs · No account, no sign-up
Why this exists
Getting chronological age right matters. One wrong borrow of days or months can put a client in the wrong norm table. This tool does the math the same careful way every time, and it never rounds, so you enter exactly what the manual asks for.
What it does
Exact age at testing
Years, months, and days, never rounded. Also shows y:m:d, total months, total days, and decimal years.
Multiple testing dates
Testing over several sessions? Add each date and see the age for each one.
One-click report sentence
A “Copy” button gives you a ready-to-paste sentence for your report.
Your borrowing method
Use actual days in the month (the default) or 30-day months, to match your test manual.
Which tests fit this age?
Checks about 36 common tests and marks each as Fits, Near edge (within 3 months), Too young, or Too old. Filter by category.
Add your own tests
Add any instrument you use, with its age range. It stays saved on your computer.
Example: “On the date of testing, the examinee’s chronological age was 9 years, 4 months, 12 days.”
Private by design
This app is built for clinical settings.
- Runs fully offline once installed.
- No client information is saved or sent anywhere.
- No account, no tracking, no cloud.
How to get started
- Click Download for Windows.
- Open the downloaded file and follow the installer.
- Enter a birth date and a testing date. Your answer appears right away.
More tools for your practice
The calculator is part of the Sana Mente Labs suite, including Testing Tracker for managing evaluations and Plotpoint.
Explore Sana Mente LabsAlways confirm age ranges and scoring rules against the current manual for each test. The test list is provided for convenience and does not replace the publisher’s guidance. © Sana Mente Labs LLC.