About Us — The People Behind Chronological Age Calculator

Some tools are built in boardrooms. This one was built out of genuine frustration.

Chronological Age Calculator was created because speech therapists, school psychologists, occupational therapists, and parents needed one simple, reliable, completely free place to calculate exact chronological age — without manual math errors, broken spreadsheet formulas, or expensive software subscriptions.

So we built it. And we made it free for everyone, forever.

What We DoYour Attractive Heading?

Chronological Age Calculator is a free online tool that calculates exact age in years, months, weeks, days, total months, and decimal format — with a built-in corrected age adjustment for premature babies. It is purpose-built for professionals who use Pearson assessments, ASQ screenings, Brigance inventories, LAUSD evaluations, speech therapy tools, and IQ calculations.

No login. No fees. No limits. Just accurate chronological age — instantly.

Why We Built This?

A wrong chronological age means the wrong score table. The wrong score table means an inaccurate result. And an inaccurate result can mean a missed diagnosis or a delayed intervention for a child who needed help.

We built Chronological Age Calculator so that never happens because of a simple subtraction error. Professionals deserve a tool that handles the math perfectly — every single time — so they can focus entirely on the child in front of them.

Who We Serve?

Chronological Age Calculator is trusted daily by:

  • Speech-Language Pathologists — for CELF, GFTA, PPVT, PLS, and all major SLP assessments
  • School Psychologists — for Pearson, LAUSD, and psychoeducational evaluations
  • Occupational Therapists — for PDMS-2, BOT-2, and Peabody assessments
  • Pediatric Professionals — for ASQ, Brigance, Gesell, and early intervention screenings
  • Parents — for understanding their child’s exact developmental age
Professional “About Us” webpage banner showing two women using a Chronological Age Calculator for a baby. One woman holds the baby while the other points at a tablet displaying age calculation results in years, months, and days. The modern office setting features soft lighting, blue-and-white branding, and “Smart Age Calc” elements, creating a trustworthy and family-friendly healthcare and age-tracking atmosphere.

Our Promise

Chronological Age Calculator will always be:

✅ 100% Free — no hidden fees, no subscriptions, no paywalls ✅ Always Accurate — built on the Lewis and Lewis standard subtraction formula ✅ Always Improving — updated based on real feedback from real professionals ✅ Private & Clean — no ads, no data selling, no distractions

Info Box

Thank you for trusting Chronological Age Calculator. Whether you are calculating age for a Pearson assessment, an ASQ screening, a speech therapy evaluation, or simply for your own child — we are honored to be part of your work.
Chronological Age Calculator — Built for Professionals. Free for Everyone.

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