eCalc & web2.0 calc – Free Online Scientific Calculator

eCalc is a free online calculator that supports many advanced features including unit conversion, equation solving, and even complex-number math.  The calculator is designed to work directly in your browser and requires no special plug-ins.

Input Mode (Algebraic vs. RPN)

The online calculator operates in either algebraic input (default mode) or RPN input.  The calculator mode is set by clicking on the "ALG/RPN" symbol in the status bar or by changing the mode inside the menu dialog box.

Online Scientific Calculator

There is a Windows desktop version of basic calculator. It’s completely free and it runs on your computer without requiring an internet connection. It has support for 6 languages.

Download Free Calculator (Windows Installer)

A Portable version of eCalc basic calculator is also there which allows you to run the calculator from a flash thumb drive, or right from your desktop without requiring any installation.

Download Portable Calculator (Standalone exe version)


Other Alternative –

web2.0 calc


Mayur Agarwal is the founder and editor-in-chief of WebTrickz. As a Technology enthusiast and an Internet addict, he loves sharing useful How To’s and Tips & Tricks. Follow him @mayurjango on Twitter.

2 Responses

  1. Ernie says:

    Web-based scientific calculators are less hassle than lugging around a big electronic calculator.

  1. October 21, 2009

    […] we shared Free Online Scientific Calculator from eCalc and now comes some very useful and easy to understand guide on Maths. These sheets are […]

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