Last updated: 12 November 2026
We want everyone to be able to use our calculators, including people who use screen readers, keyboard navigation, magnification or voice control.
Our target
We aim to meet the Web Content Accessibility Guidelines (WCAG) 2.2 at level AA.
What we do
- Text and buttons meet WCAG AA colour-contrast ratios, including our orange buttons, which use dark text.
- Every calculator field has a visible label and can be used with a keyboard alone.
- Results are announced to screen readers when they update.
- Pages work when zoomed to 200% and on small screens.
- We do not use content that flashes or moves automatically.
Known limitations
Some third-party content, such as advertising, is outside our control and may not fully meet these standards.
Feedback
If you have trouble using any part of the site, please contact us or email [email protected]. Tell us the page and the problem, and we will try to fix it or provide the information another way.