The Technology Behind CustomCalcs™ Online Calculators

CustomCalcs™ calculators are fully interactive web pages for web sites of all types. Using Excel or OpenOffice, you design the calculations you want. CustomCalcs™ turns your spreadsheet into a web page. You install the web page on your web site. Your visitors use it.

It Runs in Web Browsers

Because the calculator is delivered to you as a web page, it will function within the largest number of browser versions possible while providing the widest range of features.

CustomCalcs™ calculators operate within the following browsers:

  • Firefox (all)
  • Internet Explorer 4.x +
  • Mozilla
  • Netscape 7.x +
  • Opera
  • Safari


CustomCalcs™ custom calculators are easily installed by simply uploading the webpage we provide to the appropriate directory on your web site.