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Accessibility

We want every calculator to be usable by everyone, including people who use a keyboard, a screen reader, magnification or voice control. Our target is the Web Content Accessibility Guidelines (WCAG) 2.2, level AA.

What we do

  • Every input has a visible label, and error messages are linked to the field they describe.
  • All controls work with a keyboard and show a clear focus outline.
  • Results are announced to screen readers when they change.
  • Charts are visual summaries; the same numbers are always available as text or in a data table.
  • Text and controls meet contrast requirements in both light and dark mode.
  • Pages work when zoomed to 200% and on narrow screens without horizontal scrolling, except wide data tables, which scroll inside their own area.

Known limitations

Chart tooltips appear on mouse hover only; the data table next to each chart contains the same information.

Report a barrier

If something doesn’t work for you, email hello@qalkulator.com with the page address and a short description. We aim to respond within five working days.

Updated September 15, 2026