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Hypatia

Free#24 of 32 in Scientific Calculator Apps

Hypatia: A free Windows RPN calculator for scientific work that benefits from scripts and iteration. Ranked #24 of 32 in Scientific Calculator Apps by our editors (6.2/10); pricing: Free plan; best for windows users wanting a scriptable RPN calculator.

6.2/10Editor score
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At a glance

  • Editor score
    6.2 / 10
  • Pricing
    Free plan
  • Best for
    Windows users wanting a scriptable RPN calculator
  • Free plan
    Yes
  • Paid from
    None
  • Platform support
    Desktop
  • Facts checked
    28 Sep 2026

  • Where it wins

    • Scripts support variables, custom constants, functions, loops, and conditions
    • Runs iterative calculations and Monte Carlo experiments
    • Reads input files and exports results; prior inputs can be reused

  • Where it doesn't

    • Windows-only, with no support for other listed platforms
    • Does not support matrices, vectors, or complex numbers
    • Not intended for statistical analysis

Our verdict on Hypatia

Hypatia is a free, open-source, text-based RPN scientific calculator for 64-bit Windows. It is aimed at people who prefer reverse Polish notation and want to automate calculations rather than work only through individual expressions. Scientific functions and built-in unit conversions cover core calculator tasks; named variables, custom constants, and user-defined functions make repeated work easier to express. The desktop interface can also run from the Windows command line, giving it a scriptable character that suits technical solo users comfortable with text-based workflows.

Its programming features are the clearest distinction. Scripts can include loops and conditional statements, and the calculator supports iterative calculations and Monte Carlo experiments. Users can review, edit, and reuse previous inputs, read data from files, and export results. That combination can help with repeatable calculations and small computational experiments. Hypatia also documents means, medians, and standard deviations, but it is not intended for statistical analysis, so dedicated statistics software is a better fit for that work.

Hypatia is free and open source, and the published description identifies no paid tiers. Its scope is deliberately limited: it is a Windows desktop application, and it does not support matrices, vectors, or complex numbers. Those omissions matter for users whose scientific work depends on linear algebra or complex-valued calculations. Pick Hypatia if Windows and RPN suit your workflow and you want a programmable calculator with file input and output; choose a different tool if you need broader platform support, matrix or complex-number operations, or a statistics-focused environment.

Hypatia pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on hypatia-rpn.net

Hypatia fact sheet

Free planYes
Paid fromNone
Platform supportDesktop
Equation solvingNot verified
Statistics toolsYes
Programmable functionsYes
Complex numbersNo
Offline modeYes
Matrix operationsNo
DeploymentDesktop
PlatformsWindows
SupportEmail
Built forSolo (editorial estimate)
PricingFree plan
Websitehypatia-rpn.net
Facts checked28 Sep 2026

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Featured on iTechGuides

Featured on iTechGuides — Hypatia 6.2/10

Hypatia is listed in our Scientific Calculator Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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