Content Updates

We maintain calculator pages on an ongoing basis — accuracy fixes, clearer explanations, and accessibility improvements.

What triggers an update

  • User-reported errors (see accuracy policy)
  • Formula or curriculum standard changes
  • UX or accessibility improvements
  • SEO quality audits and content gap remediation

Transparency

Material updates to formulas or results are corrected promptly. Page-level dateModified in structured data reflects significant revisions when we republish.