GradeCalculators.org

Accessibility Statement

Last reviewed May 2026

Our commitment

GradeCalculators.org targets WCAG 2.1 Level AA conformance on every calculator and reference page. Accessibility is treated as a baseline quality bar, not an optional feature. We design, build, and audit each page with assistive-technology users in mind.

What we commit to

  • Keyboard navigation. Every interactive element is reachable and operable from the keyboard alone, in a logical tab order. Focus indicators are clearly visible. Custom widgets follow the WAI-ARIA Authoring Practices.
  • Color contrast. Text and UI elements meet a minimum 4.5 to 1 contrast ratio against their backgrounds at the standard 16px body size. Both light and dark themes are audited at build time.
  • Touch targets. Interactive controls measure at least 44 by 44 CSS pixels, the WCAG 2.5.5 recommendation, on every viewport from 320px phones to 4K monitors.
  • Reduced motion. We honour the prefers-reduced-motion media query. Animations are removed or shortened to under 100 ms when the user has requested less motion.
  • Screen reader compatibility. Every calculator widget announces its result via an aria-live region, and form fields have programmatic labels. We test with NVDA, JAWS, and VoiceOver on macOS and iOS during major releases.
  • No reliance on color alone. Result interpretations always pair color with text (for example "A, Excellent work"), so colour-blind users get the same information.

Tested with

  • NVDA on Windows 11 with Firefox and Chrome
  • VoiceOver on macOS Sonoma with Safari
  • VoiceOver on iOS 17+ with Safari Mobile
  • Lighthouse accessibility audit (target score: 100)
  • axe DevTools manual scans on Tier 1 calculator pages

Known limitations

We aim for full conformance but flag two specific edge cases:

  • Some inline SVG infographics rely on currentColor for theme support. The accompanying aria-label describes the chart in words for screen-reader users; the SVG itself is decorative.
  • Certain advanced calculators allow free-form text input without a built-in spell-check; relying on the browser's native spell-check is intentional and does not affect calculator output.

Report a barrier

If you encounter an accessibility barrier on this site, please tell us. We investigate every report and aim to publish a fix within five business days. Use the contact page and mention "accessibility" in your subject so the editorial team routes it to the right reviewer.

Standards we follow

  • WCAG 2.1, Level AA, W3C Recommendation, 2018
  • WAI-ARIA 1.2, W3C Recommendation, 2023
  • Section 508 of the US Rehabilitation Act, 2018 refresh

Audit cadence

Tier 1 calculator pages are audited every six months. New calculator launches are audited before the page is indexed. The "Last reviewed" date at the top of this statement reflects the most recent editorial pass.