Calc Pro
Precision meets elegance. The ultimate computational tool designed for students, engineers, scientists, and financial experts.
Issue? Feature Requests? Comments?
Scientific Powerhouse
From basic algebra to advanced calculus. Handle complex equations, trigonometric functions, and statistics with a robust scientific calculator designed for academic and professional success.
Universal Converter
The world's most comprehensive unit converter. Instantly switch between over 3000 units across 19 categories including currency, temperature, technical units, and more, updated in real-time.
Financial Master
Your personal financial analyst. Calculate loan payments, mortgages, compound interest, depreciation, and profit margins with specialized worksheets that simplify complex financial scenarios.
How to Get Started
Master the power of Calc Pro HD in minutes with this quick start guide.
Select Your Calculator
Access 10 specialized calculators from the side menu. Click the Menu Icon (☰) in the top-left corner to switch between Standard, Scientific, Financial, Graphing, and more.
Pro Tip: Use the "Scientific" mode for advanced trigonometry or "Base Conversions" for programming tasks.Access Advanced Functions
In Scientific mode, use the yellow 2ndF button to unlock secondary functions (like sin⁻¹, eˣ, and hyperbolic functions).
- Graphing: Enter up to 8 equations simultaneously
- Financial: Select specific worksheets for Loan, Mortgage, or Profit
View History (Tape)
Keep track of your calculations with the built-in Tape View. Every operation is recorded, allowing you to review your work or copy results to your clipboard.
Global Currency Converter
Select World Currencies to convert between 150+ currencies. Rates are updated automatically, ensuring you always have precise conversions for travel or business.
Need more help?
Check out our deep-dive guides for specific projects and calculations.
Calculators Guide
Experience the Full Power
Take Calc Pro with you. Download the native application for offline access, enhanced performance, and cross-device synchronization.