Browse free open source Calculators and projects for Desktop Operating Systems below. Use the toggles on the left to filter open source Calculators by OS, license, language, programming language, and project status.
Arbitrary-precision CRC calculator and algorithm finder
A files hash calculator for Windows and macOS.
Financial Derivatives Calculator with 168+ Models (Options Calculator)
A Forth compiler with a little difference
Powerful Calculus Environment and Matrices Handling Engine
A suite of RPN calculators and a class library for Object Pascal
Open Source Ballistic Calculator in C#
This is a program for more accurate financial calculations.
Programmable Calculator (IP functions, create user functions)
A tool for personal trainers and fitness enthusiasts.
A powerful console calculator with a fast and simple interface.
engineering programmable calculator
A project to create a simple Geometry Calculator