CalcHub aims for WCAG 2.1 Level AA conformance. Every page supports keyboard navigation, screen readers, sufficient color contrast, dark mode, and text resizing up to 200%. If you encounter an accessibility issue, please contact us — we typically address reports within 14 days.
Our Commitment
CalcHub is committed to making our 98 calculators, 25 comparison guides, and 30 blog articles accessible to all users — including those who rely on assistive technologies. We believe financial, health, and educational calculations should be available to everyone, regardless of ability.
Our practices align with Section 508 of the Rehabilitation Act, which references WCAG 2.0 AA. Federal employees and contractors can use CalcHub on accessibility-compliant systems.
EAA (European Accessibility Act) In Progress
The European Accessibility Act takes effect June 2025. We're auditing our calculators against EN 301 549 v3.2.1 to ensure full EAA compliance for European users.
Accessibility Features
Keyboard Navigation
All interactive elements (form inputs, buttons, links, menus) reachable via Tab.
Visible focus indicators on every focusable element (no outline: none without replacement).
Enter key triggers calculation on all 98 calculators (no mouse required).
Skip-link "Skip to main content" appears on focus at the top of each page.
Dropdown menus open on hover AND on keyboard focus.
Breadcrumb navigation uses aria-label="Breadcrumb" and aria-current="page".
Form fields paired with <label> elements (not just placeholder text).
Calculator results announced via aria-live="polite" regions where applicable.
Tested with NVDA (Windows) and VoiceOver (macOS/iOS).
Visual Accessibility
Dark mode available on every page (toggle in header).
Color contrast ratios meet WCAG AA: body text ≥ 4.5:1, large text ≥ 3:1.
Information is never conveyed by color alone — error states, warnings, and statuses also use icons and text.
Text resizes cleanly up to 200% without horizontal scrolling.
No content flashes more than 3 times per second (epilepsy safe).
Voice Search Ready
Schema.org SpeakableSpecification on FAQ pages, blog articles, and compare guides (~153 pages) hints to voice assistants which content to read aloud.
Clear, conversational FAQ answers optimized for Google Assistant, Siri, and Alexa.
Assistive Technologies Tested
NVDA 2024.x (Windows + Chrome/Edge/Firefox)
VoiceOver (macOS 14 + Safari; iOS 17/18 + Safari)
Windows Magnifier and macOS Zoom
Browser zoom up to 200% (Chrome, Firefox, Safari, Edge)
Keyboard-only navigation (no mouse)
Known Limitations
Complex SVG icons: A handful of decorative SVG icons lack aria-label attributes. Tracked for fix in next sprint.
Embed iframe: The /embed/ page's live preview uses an iframe — screen readers may struggle if the embedded page changes dynamically.
JavaScript-required calculators: Our 98 calculators require JavaScript to function. We've added <noscript> messages on top calculators explaining this and directing users to alternatives. Full text-only fallback is on the roadmap.
Math equations in glossary: Some terms use simple plain-text formulas; we plan to add MathML for screen-reader-friendly equation rendering.
How to Report Accessibility Issues
We welcome feedback on the accessibility of CalcHub. Please report any barriers you encounter:
Include: URL of the page, assistive technology you're using (e.g., NVDA + Chrome), description of the issue, and what you expected to happen.
Response time: We acknowledge within 3 business days and aim to resolve within 14 days for AA-blocking issues.
Last Audit
Our most recent internal accessibility audit was conducted on 2026-05-24. We plan quarterly re-audits to track improvements and catch regressions.
Updates to This Statement
This accessibility statement is reviewed and updated whenever significant site changes occur. The "Last reviewed" date at the top of this page reflects the most recent update. See /changelog/ for site-wide release history.