# Excalibur Alternatives

Excalibur is described as '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' and is a Calculator in the Education & Reference category. There are more than 25 alternatives to Excalibur for a variety of platforms, including Windows, Mac, Android, iPad and iPhone. The best alternative is Numi, which is free. Other great apps like Excalibur are Windows Calculator (Free, Open Source), GeoGebra Scientific Calculator (Free, Open Source), Multi Sum Calculator (Freemium) and Omni Calculator (Free).

- Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks.
##### Numi vs Excalibur opinions

It is not a RPN calculator. Does not run in Windows. - A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.
- Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!
- Free • Open Source
- Online
- Android
- iPhone
- Android Tablet
- iPad

- Multi Sum Calculator is a portable tool that calculates the sum of multiple values!
- Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very user-friendly, flexible and usable on web, mobile and as an embeddable web widget.
- PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator.
- Paid • Proprietary
- Mac
- iPhone
- iPad
- Apple Watch
- Apple TV

##### PCalc vs Excalibur opinions

Includes conversions and many scientific functions. - A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like:
- XCALC 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.
Discontinued

XCALC is now a DEAD project per homepage, but it is still downloadable.

- EBTCalc 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.
- Share Anything Proportionally.
##### Multi Share Calculator vs Excalibur opinions

It looks like a very limited spreadsheet macro, not a calculator.