About us

Calculator Hub Cover Image

Calculator Hub – Free Calculator App Center

CalculatorHub.app is a free online calculator website that allows you to calculate, convert, or solve problems in math, physics, science, finance, health, and more. We also have detailed explanations, formulas, examples, and FAQs for each calculation page to help you understand how it works.

Additionally, you can install any calculator as a web app for easy and quick access on any devices running recent Android, iOS, Windows, and macOS operating systems.

Our Story

Tithdara, the founder of the CalculatorHub.app, has always been fascinated by web and app development to create helpful resources for the world. As a casual app developer, he has developed and published over 20 local educational apps on Google Play Store and Microsoft Store with over one million total downloads.

Maintaining multiple apps on multiple app stores has never been easy. That’s why he created this website to host calculator web apps and adopted the progressive web app (PWA) technology, which allows those apps to run or install on any modern browser, smartphone, tablet, or PC.

Our Mission

Like our first web app, the aspect ratio calculator, we developed it to help the PC gaming and graphics designing community define a suitable resolution of an image or video based on the original ratio. Our goal is to make people’s lives easier with our calculators that cover various topics such as math, science, physics, finance, health, and more.

We commit to providing highly accurate results and a user-friendly interface to tackle challenging problems with simple solutions.

The Team

Our team is working hand in hand to develop calculators that are easy to use and accurate for everyone. We also ensure that the information provided is correct and reviewed by specialists and academics from corresponding fields.

Tithdara Koy

Tithdara Koy


Tithdara is the creator of calculatorhub.app website. He holds a Master’s degree in IT Engineering from the Royal University of Phnom Penh and has over 15 years of experience in software development and system engineering.

Read more about Tithdara.

Dr. Sopheavy Dim


Sopheavy holds a Doctor of Medicine Diploma from the International University and several professional certificates in aesthetics and skincare. She is a lecturer with over eight years of teaching experience in physical science and immunology.

Read more about Sopheavy.

Meet all our Calculator Hub team.


Can I share or link to a calculator page on the calculatorhub.app?

Yes, we appreciate your sharing, and you are welcome to link to any page on our site.

Can I embed a calculator from the calculatorhub.app on my website?

Yes, you can use the embed tool on each calculator page to get code for embedding on your website.

How can I provide feedback or report issues?

We welcome and appreciate any suggestions or bug reports. Please don’t hesitate to contact us at [email protected].

Suntara Media

The calculatorhub.app website and apps hosted on Google Play Store, Amazon Appstore, Microsoft Store, and Apple App Store are owned and operated by Calculator Hub as a part of Suntara Media, an organization based in Cambodia.

Suntara Media
2nd Floor, #G-110 Arata Garden Residences
Phnom Penh 120803, Cambodia.

If you want to report issues or provide feedback, please visit our Contact Us page and share your thoughts with our team.