| What it does | Date, deadline and time calculators with visible assumptions and sources
| Free BMI calculator using WHO formula with instant results in metric or imperial units
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - 184 calculators across 53 categories
- Shows counting rules and assumptions with each result
- Local-first processing with no data sent to servers
- Holiday and weekend calendar selection
- Business day counting
- Date arithmetic (add or subtract days, weeks, months, years)
- Sleep cycle planner with NIH-based 80-100 minute cycles
- Time zone conversion with DST handling
- Save results as images or add to calendar
- Schengen visa 90/180 day rolling window auditing
| - Instant BMI calculation with metric or imperial units
- WHO formula for BMI calculation
- Results in both kg/cm and lb/feet-inches without manual conversion
- BMI category classification with weight range guidance
- No data storage or registration required
- Explanatory content on BMI limitations and proper interpretation
- Cited sources from WHO, CDC, and national health organizations
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| What makes it different | - Shows the source and counting rule beside every answer
- No sign-up or account required to use any calculator
- All inputs stay in your browser for privacy
- Comprehensive coverage across 53 life and work categories
- Higher-risk calculators include prompts to verify with professionals
| - Uses only primary medical sources verified before publication
- Works without internet or data storage in browser
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 0 | 0 |
| Citation Flow (Majestic) | 0 | 0 |
| Referring domains (Majestic) | 0 | 0 |