OpalCalc
OpalCalc is a brand new type of calculator for the PC.
16 Alternatives To OpalCalc
Calculator by Xlythe
Calculator is a simple 4 function calculator.
Gnome calculator
Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).
Google
Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
Insect
High precision scientific calculator with full support for physical units.
InstaCalc
The fast, easy, shareable online calculator.
Multi Share Calculator
Share Anything Proportionally
NaSC
Do maths like a normal person.
Numi
Numi Organic Tea is a premium, Fair Trade sustainable company specializing in unique and innovative blends of green, black, white, oolong teas, Pu-erh, rooibos, herbal and Flowering Tea™.
PCalc
PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody…
Qalculate!
Qalculate! is a multiplatform multi-purpose desktop calculator.
RealCalc Scientific Calculator
RealCalc Scientific Calculator
SpeedCrunch
SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
WolframAlpha
WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.
fxSolver
fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press “Solve.”
galculator
galculator is an open source scientific calculator with a modern GUI and a wide range of operation modes. It supports algebraic, reverse polish (RPN) and paper mode notations.
handyCalc
Solve things in your hand.