Interactive list of pages located on

Welcome to the Free Online Calculator Use sitemap. This sitemap was designed to help you to quickly find the desired online calculators and self-calculating tools, worksheets and quizzes on -- without having to scroll through a virtual skyscraper of information (though you still have the option to do so).

Sitemap Instructions

To quickly find the calculator or support page you are looking for without scrolling, in the search field and begin typing related keywords. This will instantly shorten the list to only those titles and descriptions that contain the text you have typed.

a calculator name to go the calculator's web page.

the plus (+) icon to the right of a calculator's name to view a full description of a calculator.

a category name to go the category's main page to see its full list of calculators.

      Highlights and Features

      Highlights and Features:

      Top 10s: this tab for an introduction to this section.

      Articles: this tab for links to various articles that are included on the calculator pages.

      Guide: this tab for instructions on how to use this website.

      Pocket Calc: this tab for a handy "pocket" calculator.

      Adjust Calculator Width:

      Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

      Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

      Show/Hide Popup Keypads:

      Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

      Stick/Unstick Tools:

      Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

      If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.