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Windows Desktop Version

Experience the full power of the eCalc Scientific Calculator on your Windows Desktop. In addition to all the powerful calculating features of eCalc you get the option of six color schemes and a sliding side palette which you can open and close to maximize your desktop space. (Supports Win98,ME,NT4,2k,XP,Vista)

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Mac OS X Dashboard Version

Make your Mac OS X Dashboard even more powerful with the eCalc Scientific Calculator. In addition to all the powerful calculating features of eCalc you get the option of six color schemes and a sliding side palette which you can open and close to maximize your dashboard space. (Supports Mac OS X 10.4 and later)

Download Mac OS X Scientific Calculator Trial

Windows Desktop Version

Are you looking for a nice simple calculator for you desktop? Our windows desktop calculator combindes the common functions of a calculator with a nice user interface. When you need more functionality there is a scientific mode button that will take you to eCalc's Online Scientific Calculator. (Supports Win98,ME,NT4,2k,XP,Vista)

Download Windows Desktop Basic Calculator

Windows Vista SideBar

Improve your Vista sidebar with eCalc's Basic Calculator gadget. Your sidebar will have a small version of the eCalc Basic Calculator. Drag it off of the sidebar and it the calculator will expand with a nice user interface. When you need more functionality there is a Scientific Mode button. (Supports Win98,ME,NT4,2k,XP,Vista)

Download Vista Sidebar Calculator

Mac OS X Dashboard

Install the popular eCalc Basic Calculator on your Mac OS X Dashboard. Our Mac OS X widget combindes the common functions of a calculator with a nice user interface. When you need more functionality there is a Scientific Mode button that will take you to the eCalc Online Scientific Calculator. (Supports Mac OS X 10.4 and later)

Download Mac OS X Calculator

Online Version

Our basic version of eCalc is available for free online and is useful for performing simple calculations. This is a great resource for first time calculator users.