GlassCalc
GlassCalc is a free Windows calculator designed for quick input via keyboard.
19 Alternatives To GlassCalc
Calcbot for Apple Watch
Calculate, convert, and split tips from your wrist

Calculator plus1
The calculator with the basic mathematical functions for pupils and students

Microsoft Mathematics
Microsoft Mathematics is a desktop graphing calculator that can help you visualize and see…
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™.

Omni Calculator
Over 350 calculators in one place í ¾í´
Online Terminal Calculator
Online terminal based calculator, it is one of the most productive calculator in online, it uses…

PCalc
PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody…
Sicyon calculator
Sicyon is a freeware sci/eng all-in-one software tool - expression calculator, constant database, unit converter, solver

SimpleCalc
A calculator written in C#.NET 3.5 that aims to be simple and usable.

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 .
TTCalc
TTCalc is an open source bignum mathematical calculator.

WebMath
WebMath is a math site that creates answers to particular math inquiries and issues, as entered by a client, at a precise minute.
WolframAlpha
WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.
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.