Accessibility

Our aim is to make every calculator usable with a keyboard and on a small screen.

Using the tools

Use the skip link to reach the main content. Fields have labels and visible units, and keyboard focus is highlighted. Calculation errors appear beside the form. A status message indicates when a result needs recalculating after an input changes.

Text and layout

You can enlarge text using your browser’s zoom controls. Wide schedules scroll horizontally within the results. The Print button opens a layout for printing your calculation.

Report a problem

Email rubo8k@gmail.com with the page address, your browser and a description of the difficulty. Include any assistive technology you were using if it helps explain the issue.