Free scientific calculator which saves you time and frustration by providing unique easy to use tools.




Calc98 is described as 'Small but very powerful scientific calculator, with lots of features:' and is a Calculator in the education & reference category. There are more than 50 alternatives to Calc98 for a variety of platforms, including Android, Windows, Mac, iPhone and iPad apps. The best Calc98 alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Calc98 are Fossify Calculator, Qalculate!, OpenCalc and Calc You.
Free scientific calculator which saves you time and frustration by providing unique easy to use tools.




CrossCalc is day to day Scientific Calculator that can be used on all your devices. It respects your privacy and does not show any ads.




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.




ESBCalc is a Freeware Scientific Calculator for Windows with Infix Notation, Brackets, Scientific Functions (Trigonometric, Hyperbolic, Logarithmic - including Base 10, Base 2 & Natural - plus more), Memory, Paper Trail, Result History List and more.

TTCalc is an open source bignum mathematical calculator. It features arithmetical functions, trigonometric functions, inverse trigonometric functions, hyperbolic functions, inverse hyperbolic functions, logical operators, logarithms, functions for converting between degrees and...



Multi Sum Calculator is a portable tool that calculates the sum of multiple values!




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.

Simple yet very effective calculator with print capabilities and log registration.

Power calculator for Android. Has Calculus, Algebra, 2D/3D Graphing and other features.




Moffsoft FreeCalc is the ideal replacement for your standard Windows calculator - with adjustable size, visible memory value and digit groupings, this free calculator software is a simple and intuitive tool.




Excalibur 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.

ECW Expression Calculator is an advanced expression calculator with the following features:


