A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.


Numbat is described as 'High precision scientific calculator with full support for physical units (web and terminal versions)' and is a Calculator in the education & reference category. There are more than 50 alternatives to Numbat for a variety of platforms, including Windows, Mac, Linux, Android and Web-based apps. The best Numbat alternative is Wolfram Alpha, which is free. Other great apps like Numbat are SpeedCrunch, Qalculate!, fxSolver and Numi.
A text calculator for natural language expressions, variables & unit conversions, with a vim-style TUI. Inspired by Numi.





NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.




A calculator with syntax highlighting that supports user-defined variables and functions, math-like syntax, and some more advanced operations such as derivation and integration (estimate), and complex numbers.



kalker is the most popular Self-Hosted alternative to Numbat.
The Unsure Calculator is an online tool that lets you calculate with numbers you’re not sure about.

Ever wanted to work something out, but your default calculator isn't powerful enough, and it's not worth creating a spreadsheet for?




Calculator with percentages, powers and functions. History with comments that is synced across all your devices. Cursor for editing anywhere. Simple interface with dark and light themes.




NoteCalc is a handy calculator trying to bring the advantages of Soulver to the web.




Lumist launched its homework answers app in 2020 with over 3M solution sets in their database. Take a photo of your college homework statistics, technology, economics and math questions and get answers and math solvers from the Lumist app.

Calculator-inator is a Calculator & Converter for Android inspired from Google Calculator


