| What it does | Project retirement savings in a Roth IRA versus a simplified taxable account
| Ascendant calculator for Italy and the world with IANA timezone conversion and historical rules
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| IT
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Year-by-year balance projections with growth and tax tracking
- Contribution timing selector for beginning or end of year
- Detailed comparison table showing Roth advantage over taxable account
- Balance accumulation graph by age
| - IANA timezone conversion with historical rules for accurate local to UTC conversion
- Supports over 7,800 Italian cities and 165,000 global cities
- Shows margin of error with ±15, ±30, or ±60 minute options
- Multi-level personalized reading including base description, decan analysis, and sun-ascendant synthesis
- Daylight saving time automatically applied based on historical rules for location and date
- All calculations processed locally in browser with no data sent to external services
- Cusps warning to alert when result is near a zodiac sign boundary
- Monthly table tool for quick checks across different times and signs
- Combined moon and ascendant calculator in one tool
- Chrome extension for quick ascendant checks from the browser
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| What makes it different | - Compares tax-deferred growth in Roth versus tax-drag in taxable accounts under identical contributions
- Transparent calculation methodology with disclosed assumptions and limitations
- Separates contribution principal from modeled growth in results
| - Transparent about uncertainty: displays margin of error and warns when result is near sign boundaries
- Uses reliable IANA timezone database with historical rules, not approximations
- Privacy-first: all computation happens locally in the browser without storing or sending personal data
- Clear explanations of calculation method, limits, and how to interpret results
- Independent project maintained transparently by a single developer
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 53 ● no change since last check | 20 ● no change since last check |
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| Trust Flow (Majestic) | 10 | 8 |
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| Citation Flow (Majestic) | 29 | 23 |
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| Referring domains (Majestic) | 80 | 53 |
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Roth IRA Calculator
AstroCalcolo