| What it does | Free financial calculators for certificates of deposit, mortgages, retirement, and loans with charts and schedules
| Free, real-time 401(k) calculator showing contributions, employer match and compound growth
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| Stage | Startup
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| Founded | 2026
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Certificate of deposit calculator with growth projections and tax-adjusted returns
- Mortgage and real estate calculators including refinancing analysis
- Retirement planning tools for 401(k), IRA, pension, and Social Security
- Loan and debt payoff calculators
- CSV export and print functionality
- Transparent formulas documented on every calculator page
- Over 70 calculators across six financial categories
| - Live, real-time calculations that update as you type
- Breaks down balance into contributions, employer match and investment growth
- No signup or account required
- All calculations run in the browser with no data stored
- Updated for 2026 IRS contribution limits
- 11 focused calculators for different 401(k) scenarios
- Visual chart showing balance growth over time
- Employer match calculator
- Roth vs traditional comparison tool
- Early withdrawal penalty calculator
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| What makes it different | - All calculations run locally in your browser with no data stored on servers
- Completely free with no sign-up, account, or paywall required
- Independent with no product recommendations or paid placements
- Transparent formulas allow verification against spreadsheets or bank statements
| - Fully transparent formulas shown for every calculation
- IRS-accurate calculations verified against official guidance
- No advertising or sponsored products
- Complete privacy with client-side-only calculations
- Worked examples showing calculations step-by-step
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ▲ +1 (up) since last check | 7 ● no change since last check |
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| Trust Flow (Majestic) | 9 | 17 |
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| Citation Flow (Majestic) | 9 | 10 |
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| Referring domains (Majestic) | 27 | 19 |
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CDCalculator
401k Calculator