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YourBodyCalc
14 health calculators · 9 languages · no signup · offline
Free health & fitness calculators that respect you. 14 tools (BMI, TDEE, BMR, macros, body fat, pregnancy gain…) in 9 native-translated languages. Mobile-first PWA, works offline, no signup, no upload. Embed any calc on your site with one iframe.
Hey Product Hunt 👋
Maker here. I built YourBodyCalc because the existing calculator sites (calculator.net, omnicalculator) felt like 2010 internet: cluttered, ad-heavy, machine-translated, and assuming everyone reads English.
What's different:
🌍 9 languages with REAL translation (en/es/pt-BR/de/fr/it/ja/ko/id) — not Google Translate. Numbers format per locale (de "1.234,5", fr "1 234,5", ja "1,234"). The Japanese BMI calc has a JASSO toggle (Japan's stricter standard, threshold 25) on top of WHO.
🧮 14 calculators built on cited primary sources — WHO, NIH, IOM 2009, ACOG, Mifflin-St Jeor, Kemenkes RI. Each formula is a pure function with vitest coverage. Pregnancy weight gain returns "insufficient data" for underweight twins because IOM 2009 has no guidance there — felt important not to invent numbers in YMYL space.
📱 Mobile-first PWA. Works offline. No account. No upload. Calculations happen entirely in your browser — your weight/height never leaves your device.
🔌 Embed widget: drop any calculator into your blog/site with one iframe tag. Free for any use. Footer attribution is rel="nofollow" so it stays compliant with Google's widget-link policy.
Honest about the limits:
- DA is ~0 (just deployed), this launch is the first real distribution push
- I'm not a medical professional; every YMYL page disclaims that explicitly
- I'm a solo operator using AI assistance, so feedback shapes what ships next
What I'd love feedback on:
1. Embed UX — is the copy-snippet flow obvious?
2. JASSO toggle — useful niche or feature creep?
3. Any calculator you actually use that's missing?
Stack: Next.js 16 App Router · TypeScript · Tailwind v4 · next-intl · recharts · sharp. Deployed on Vercel + Cloudflare DNS.
Happy to answer anything.
About YourBodyCalc on Product Hunt
“14 health calculators · 9 languages · no signup · offline”
YourBodyCalc was submitted on Product Hunt and earned 0 upvotes and 2 comments, placing #140 on the daily leaderboard. Free health & fitness calculators that respect you. 14 tools (BMI, TDEE, BMR, macros, body fat, pregnancy gain…) in 9 native-translated languages. Mobile-first PWA, works offline, no signup, no upload. Embed any calc on your site with one iframe.
On the analytics side, YourBodyCalc competes within Health & Fitness, Productivity and Fitness — topics that collectively have 740.3k followers on Product Hunt. The dashboard above tracks how YourBodyCalc performed against the three products that launched closest to it on the same day.
Who hunted YourBodyCalc?
YourBodyCalc was hunted by DeCreator. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of YourBodyCalc including community comment highlights and product details, visit the product overview.
DeCreator