96 likes119 Qalculate! alternativesQalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).
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14 likes153 PCalc alternativesPCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a...
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PCalc Features
9 likes111 galculator alternativesgalculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).
galculator Features
DiscontinuedReported as no longer to be updated/developed by the developer : https://github.com/galculator/galculator/issues/37So far no forks have appeared.
4 likes37 HiPER Scientific Calculator alternativesScientific calculator with arbitrary precision and portrait and landscape mode. Fraction and periodic numbers support. Looks like a real calculator! The calculator has up to 100 digits of significand and 9 digits of exponent.
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HiPER Scientific Calculator Features
4 likes57 XCALC alternativesXCALC is my little RPN calculator completely free to use, and still downloadable. XCALC is now a DEAD project. No work has been done on this project since 2012, and nothing more will be done either.
XCALC Features
DiscontinuedXCALC is now a DEAD project per homepage, but it is still downloadable.
7 likes30 Excalibur alternativesExcalibur for Windows 32-bit version is a freeware full featured RPN-only calculator. This is a serious calculator for serious users. Excalibur takes up a small amount of resources for all it does so well.
Excalibur Features
DiscontinuedThe website is unavailable, but the app can still be downloaded from third-party websites.
1 like59 EBTCalc alternativesEBTCalc is a Reverse Polish Notation (RPN) calculator that can have custom buttons. Custom buttons are programmed in Javascript with a convenient editor. EBTCalc runs on Windows 10, OSX, and Linux as well as Android. EBTCalc is open source.
EBTCalc Features
Like this app1 Hypatia RPN Calculator alternativesHypatia is a text-based programmable scientific calculator for Windows that uses its own enhanced version of RPN (Reverse Polish Notation). Hypatia is free, open source, fully portable, has a very small footprint, and can be run from the Windows desktop, the PowerShell, or from...
Hypatia RPN Calculator Features
