/* TEAM */

Senior Financial Editor: Sarah Mitchell
  Specializes in: Personal Finance, Taxes, Retirement, Debt Management, Investing
  Profile: https://calc-center.party/authors/#author-sarah-mitchell

Health & Nutrition Lead: Dr. James Chen, RD
  Specializes in: Nutrition, Fitness, Body Composition, Sleep Science, Pregnancy
  Profile: https://calc-center.party/authors/#author-james-chen

Real Estate & Construction Editor: Marcus Webb
  Specializes in: Real Estate, Mortgages, Construction, Property Investment, Home Renovation
  Profile: https://calc-center.party/authors/#author-marcus-webb

Education & Lifestyle Editor: Elena Rodriguez
  Specializes in: Education, Student Finance, Lifestyle, Productivity, Math Concepts
  Profile: https://calc-center.party/authors/#author-elena-rodriguez

/* SITE */

Last update: 2026-05-24
Standards: HTML5, CSS3, ES2020, Schema.org JSON-LD, WCAG 2.1
Components: PWA (manifest + service worker), 98 free online calculators, 16 comparison guides, 50-term glossary, internal search, embed iframe generator, RSS/Atom feeds
SEO: Open Graph, Twitter Cards, FAQPage / Article / BreadcrumbList / AggregateRating / Person / Speakable / WebAPI / DefinedTermSet / Organization / WebSite Schema.org
AI Ready: llms.txt + llms-full.txt for GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot, Applebot-Extended

/* THANKS */

Thanks to: WHO, CDC, NIH, IRS, CFPB, BLS, FDIC, USDA — for authoritative data used in our calculators.

# Want to contribute? https://calc-center.party/contact.html