Parent Company
ChronoAge Calculator is a product of Fintech Web LLC, a technology company specializing in building high-quality, free-to-use online tools and calculators. Fintech Web LLC is a legally registered limited liability company that operates a portfolio of educational and utility web applications, with ChronoAge Calculator being our flagship product. As a business entity, Fintech Web LLC is committed to transparency, data privacy, and delivering best-in-class user experiences across all of our digital products.
Our Story
ChronoAge Calculator was born from a simple observation: most online age calculators provide bare-minimum results and a bland user experience. We believed people deserve better — a tool that is not only mathematically precise but also visually stunning and packed with interesting insights about their age.
What started as a personal project to calculate exact ages for medical records quickly evolved into a comprehensive platform that serves millions of users worldwide — from parents tracking their children's developmental milestones to HR professionals verifying eligibility requirements.
Founded in 2020, ChronoAge Calculator has grown from a simple date-difference tool into the most comprehensive chronological age calculator available online. Over the past five years, we have continually refined our algorithms, expanded our feature set, and redesigned the user interface to reflect the premium quality our users deserve.
Who We Are
We are a dedicated team of software engineers, UX designers, and domain experts united by a shared passion for precision and great design. Our team brings together over 25 years of combined experience in web development, data science, and healthcare informatics.
- Engineering Team: Our developers specialize in high-performance web applications, building browser-first tools that deliver instant results without server-side processing — ensuring your data never leaves your device.
- Design Team: Our UX/UI designers craft every interaction to be intuitive and visually engaging, drawing inspiration from premium applications to ensure ChronoAge feels polished and professional.
- Domain Experts: We consult with healthcare professionals, educators, and HR specialists to ensure our calculations and features meet real-world professional needs.
Based out of our headquarters in Wilmington, Delaware, our team operates with an agile, user-focused mindset — shipping improvements weekly and responding to user feedback within 48 hours.
What We Do
ChronoAge Calculator provides a suite of precise, free-to-use age calculation tools and services designed for both personal and professional use:
- Chronological Age Calculator: Our core tool calculates your exact age in years, months, days, hours, minutes, and seconds — accounting for leap years, varying month lengths, and century-year exceptions.
- Adjusted Age Calculator: A specialized tool for healthcare professionals to calculate corrected/adjusted age for premature infants, essential for developmental milestone tracking.
- Child Age Calculator: Purpose-built for parents and pediatricians to determine precise ages for school enrollment cutoffs, vaccination schedules, and developmental assessments.
- Age for Assessments: Designed for psychologists, occupational therapists, and educators who need exact chronological age for standardized test administration and scoring.
- Multi-Format Results: Every calculation returns your age in 8+ different units (years, months, weeks, days, hours, minutes, seconds, milliseconds), plus zodiac sign, Chinese zodiac, birthstone, generational cohort, and life path number.
- Country-Specific Calculators: Localized age calculators for the UK, Australia, and New Zealand, tailored to each country's school enrollment and legal age requirements.
Why Trust ChronoAge?
ChronoAge Calculator has established itself as a trusted authority in online age calculation through demonstrated expertise, scale, and commitment to quality:
- 5+ Years of Experience: Since our founding in 2020, we have served over 10 million calculations, continuously refining our accuracy and expanding our feature set.
- Cited by Professionals: Our calculator is referenced by occupational therapists, school psychologists, and pediatric clinicians in clinical and educational settings across the United States, United Kingdom, Australia, and New Zealand.
- Algorithm Accuracy: Our age calculation algorithm has been independently verified against ISO 8601 date arithmetic standards and tested with over 50,000 edge-case date combinations, including leap year boundaries and century transitions.
- Privacy Accreditation: We are fully compliant with GDPR and CCPA data protection regulations. All calculations are performed entirely client-side in your browser — zero personal data is ever collected, stored, or transmitted to any server.
- Google Verified Publisher: Our site is verified by Google Search Console, Bing Webmaster Tools, and Yandex Webmaster, confirming our identity as a legitimate, trustworthy publisher.
- Featured in Education Resources: ChronoAge Calculator has been recommended in educational resource guides for early childhood educators and special education assessment professionals.
Our Team Workspace
Our team works from a modern, collaborative workspace designed to foster creativity and precision engineering. Here's a look inside our office where we build and improve ChronoAge every day:
What Our Users Say
Don't just take our word for it — here's what professionals and everyday users have to say about ChronoAge Calculator:
"ChronoAge Calculator is the most accurate and user-friendly age calculator I've found online. I use it daily for patient assessments, and it saves me significant time compared to manual calculations."
— Dr. Sarah M., Pediatric Occupational Therapist, Texas
"As a school psychologist, I need exact chronological ages for standardized test scoring. ChronoAge handles every edge case perfectly — leap years, month boundaries, you name it. It's become an essential part of my toolkit."
— James R., School Psychologist, California
"I love how ChronoAge breaks down my age into so many different units. The zodiac info, life path number, and generational details make it so much more than a simple calculator. My whole family enjoys using it!"
— Maria L., Parent & Early Childhood Educator, New York
"We integrated ChronoAge into our HR onboarding process to verify age-related eligibility. It's reliable, fast, and completely free. Highly recommended for any HR team."
— David K., HR Manager, London, UK
Awards & Recognition
- Top-Rated Calculator (2024): Recognized as a top-rated online age calculator by multiple independent web tool review platforms.
- 10M+ Calculations Served: Milestone achievement reflecting the trust and adoption of our tool by users across 180+ countries.
- 4.8/5 Average User Rating: Consistently rated 4.8 out of 5 stars by users across feedback channels, based on accuracy, ease of use, and design quality.
- Accessibility Compliance: Our tool meets WCAG 2.1 AA accessibility standards, ensuring an inclusive experience for users with disabilities.
Our Mailing Address
For official correspondence, legal inquiries, or partnership proposals, you can reach Fintech Web LLC at our registered mailing address:
Fintech Web LLC1209 Orange Street
Wilmington, DE 19801
United States of America
Email: contact@chronologicalage-calculator.net
Phone: +16015647032
Featured & Partner Websites
ChronoAge Calculator is proud to be part of a broader ecosystem of trusted educational and professional resources. Here are some of the organizations and platforms we collaborate with and recommend:
- CDC Developmental Milestones — The Centers for Disease Control and Prevention's official milestone tracker, which we reference for our child development age insights.
- WHO Child Growth Standards — The World Health Organization's growth standards used globally for pediatric age assessments.
- American Occupational Therapy Association (AOTA) — A leading professional organization for occupational therapists who rely on precise chronological age in their assessments.
- National Association of School Psychologists (NASP) — The professional organization for school psychologists, whose members frequently use age calculators for standardized testing.
- ISO 8601 Date & Time Standard — The international standard for date and time representation that underpins our calculation methodology.
Our Values
- Accuracy: We never compromise on mathematical precision.
- Privacy: Your data stays on your device. Period.
- Accessibility: Free to use, no registration required, and designed to work on any device.
- Continuous Improvement: We regularly update our tool based on user feedback to add new features and improve the experience.
Get in Touch
We love hearing from our users! Whether you have a feature suggestion, found a bug, or simply want to say hello, don't hesitate to reach out to us. Your feedback drives our continuous improvement.