Designed to be usable by more people
We are working to make every calculator, article, and site control clear, keyboard-friendly, and compatible with assistive technology.
What we aim for
We aim to follow the Web Content Accessibility Guidelines (WCAG) 2.2 at the AA level where practical. That includes readable contrast, meaningful headings, visible keyboard focus, labels for controls, responsive layouts, and status messages that explain calculator results.
Known limitations
Some older pages, third-party content, or complex interactive calculations may not yet meet every guideline. Accessibility work is ongoing, and improvements are included as pages are reviewed and updated.
Tell us what is getting in the way
If you have trouble using a calculator, navigating a page, or reading a result, contact us with the page address and a description of the issue. Include the assistive technology or browser you used if you can, but do not share sensitive information.