Precision for Ontario: Empowering Your Financial Future.
In an ever-changing economic landscape, clarity and accuracy are the foundations of every successful financial decision you make.
Ontario Calc provides specialized digital tools for HST calculations, TFSA planning, and real estate assessment across the province.
Our mission is to ensure every resident has access to 100% accurate data, delivered through a clean and intuitive interface that simplifies complexity.
Explore our suite of calculators today to gain total control over your personal or business finances.
Trusted by thousands of Ontario residents
Integrity in every calculation



Our Core Values
The foundational principles driving our next-generation financial technology and commitment to excellence.
Meet the Experts
Precision, experience, and dedication. Our leadership team brings decades of combined expertise to every challenge.

Eleanor Vance
With over 15 years of experience in structural design, Eleanor leads our core engineering team. Her meticulous approach ensures every project meets the highest standards of safety, efficiency, and architectural innovation.
Contact Eleanor
Marcus Thorne
Marcus brings a wealth of knowledge in quantitative analysis and risk management. He specializes in developing robust financial models that drive strategic decision-making and long-term growth for our clients.
Contact Marcus
Sophia Chen
Sophia orchestrates our daily operations with precision. Her background in systems engineering allows her to optimize workflows, eliminate redundancies, and ensure seamless collaboration across all departments.
Contact Sophia