| What it does | Free exact age calculator in years, months and days for educators, clinicians and parents
| Free options calculators and trade analyzer that shows its assumptions
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| Pricing model | Free
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| Pricing | Not given
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| Key features | - Instant calculation of exact age in years, months, and days
- Multiple output formats including test format (Y;M;D), decimal years, total days, weeks, and hours
- Automatic leap year handling
- Exact month length calculation using actual days per month
- Custom reference date selection for past or future dates
- No registration or sign-up required
- Browser-based calculation with no data storage
- Clean interface without ads or clutter
- Results in standardized test format
| - Trade analyzer for single and multi-leg positions
- 58 strategy templates
- Black-Scholes-Merton Greeks calculator
- Scenario matrix across price and time
- Volatility labeled by source
- MarketData.app integration for option chains
- Browser-based position storage
- Shareable position links
- 20+ focused calculators
- Plain-English learning library
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| What makes it different | - Built specifically for professionals who need accurate age calculations for standardized assessments and school placement decisions
- Completely private with all calculations done in your browser and no data collection
- Handles edge cases that trip up manual calculation like leap years and month-end dates
- Free alternative to discontinued publisher tools that professionals previously relied on
| - Shows which numbers are exact arithmetic, which are estimates, and which come from user input
- No account required and positions stay in browser
- Never hides assumptions or pricing
- Server never sees user data or tokens
- Exact expiration payoff calculations
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ● no change since last check | 7 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 4 |
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| Citation Flow (Majestic) | 20 | 20 |
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| Referring domains (Majestic) | 59 | 9 |
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Chronological Age Calculator
CallPutHub