This scientific calculator uses Reverse Polish Notation (RPN) to help you break down complex problems. It offers a full 47-series instruction set with advanced functions and a program editor. The free version includes extensive tutorials and documentation.
1.11
October 17, 2026
Updated firmware to 00.109.05.00b2 Update Rejig to 0.36.2 Increased font size options in the explorer Bugfixes
More$4.99
Pro Pack
Enables Key & Menu explorer while using the calculator.
RPN, or Reverse Polish Notation, is a calculator input method where operators follow operands. R47 RPN Calculator uses this method to mirror how you naturally break down problems into steps, making it an extension of your thinking process rather than just a shortcut.
Yes, R47 RPN Calculator works fully offline after its initial launch. This ensures you can access its powerful scientific calculation and programming features without needing an internet connection.
The calculator supports trigonometry, logarithms, statistics, probability, finance, complex numbers, base conversions, and matrix operations, all within the full 47-series instruction set.
The free version includes the core RPN calculator, a program editor for reading and writing 47-series programs, reference documentation, and a comprehensive tutorial library covering various mathematical and programming topics.
The Pro version unlocks the 'Explorer' feature, allowing you to browse every menu, flag, mode, and operation the calculator engine supports. This feature is searchable and cross-linked for easy navigation.
R47 RPN Calculator has an age rating of 4+, making it accessible for a wide range of users. Its educational focus on problem-solving can be beneficial for learning.
The latest version, 1.9, was released on 2026-06-10, indicating active development and regular updates to improve functionality and reliability.
No, R47 RPN Calculator is advertised as having no ads. It also avoids third-party analytics and tracking, and does not require an account for use.
